Best quotes by the German Philosopher Immanuel Kant

We can judge the heart of a man by his treatment of animals.
  • heart

It is not God's will merely that we should be happy, but that we should make ourselves happy
  • Happiness

Seek not the favor of the multitude; it is seldom got by honest and lawful means. But seek the testimony of few; and number not voices, but weigh them.
  • Recognition

Even philosophers will praise war as ennobling mankind, forgetting the Greek who said: 'War is bad in that it begets more evil than it kills.'
  • bad



Give me matter, and I will construct a world out of it!

So act that your principle of action might safely be made a law for the whole world.
  • Advice

By a lie, a man...annihilates his dignity as a man.
  • DeceptionLying

To be is to do.

From such crooked wood as that which man is made of, nothing straight can be fashioned.
  • Honesty

There is, therefore, only one categorical imperative. It is: Act only according to that maxim by which you can at the same time will that it should become a universal law.

Act as if the maxim of your action were to become through your will a be general natural law.
  • Actions

Out of timber so crooked as that from which man is made nothing entirely straight can be carved.
  • Humanity

Live your life as though your every act were to become a universal law.
  • Life

But although all our knowledge begins with experience, it does not follow that it arises from experience.
  • arises

Happiness is not an ideal of reason, but of imagination.
  • imagination

In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so.
  • ethics

Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.
  • Morals

Suicide is not abominable because God prohibits it; God prohibits it because it is abominable.
  • Suicide

If man makes himself a worm he must not complain when he is trodden on.
  • complain

Experience without theory is blind, but theory without experience is mere intellectual play.
  • experience

It is not necessary that whilst I live I live happily; but it is necessary that so long as I live I should live honourably.
  • happily

It is not God's will merely that we should be happy, but that we should make ourselves happy.
  • happiness

Science is organized knowledge. Wisdom is organized life.
  • knowledge

The only objects of practical reason are therefore those of good and evil. For by the former is meant an object necessarily desired according to a principle of reason; by the latter one necessarily shunned, also according to a principle of reason.
  • according

Two things fill me with constantly increasing admiration and awe, the longer and more earnestly I reflect on them: the starry heavens without and the moral law within.
  • Conscience

Ours is an age of criticism, to which everything must be subjected. The sacredness of religion, and the authority of legislation, are by many regarded as grounds for exemption from the examination by this tribunal, But, if they are exempted, and cannot lay claim to sincere respect, which reason accords only to that which has stood the test of a free and public examination.
  • Criticism

Enlightenment is man's emergence from his self-imposed nonage. Nonage is the inability to use one's understanding without another's guidance. This nonage is self-imposed if its cause lies not in lack of understanding but in indecision and lack of courage to use one's mind without another's guidance. Sapere Aude! Dare to Know! Have the courage to use your own understanding is therefore the motto of the Enlightenment.
  • Enlightenment

What can I know? What ought I to do? What can I hope?
  • Hope

Out of the crooked timber of humanity no straight thing can ever be made.
  • Humanity

Intuition and concepts constitute... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge.
  • Instinct

The history of the human race, viewed as a whole, may be regarded as the realization of a hidden plan of nature to bring about a political constitution, internally, and for this purpose, also externally perfect, as the only state in which all the capacities implanted by her in mankind can be fully developed.
  • Mankind

All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope?
  • Philosophy

Nothing is divine but what is agreeable to reason.
  • Reason

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
  • Reason

Two things fill the heart with renewed and increasing awe and reverence the more often and the more steadily that they are meditated on: the starry skies above me and the moral law inside me.
  • Reflection

All thought must, directly or indirectly, by way of certain characters, relate ultimately to intuitions, and therefore, with us, to sensibility, because in no other way can an object be given to us.
  • Thought

Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.
  • dark

May you live your life as if the maxim of your actions were to become universal law.
  • actions

Always recognize that human individuals are ends, and do not use them as means to your end.
  • end

By a lie, a man... annihilates his dignity as a man.
  • dignity

Immaturity is the incapacity to use one's intelligence without the guidance of another.
  • another

It is beyond a doubt that all our knowledge that begins with experience.
  • begins

Act that your principle of action might safely be made a law for the whole world.
  • act

The schematicism by which our understanding deals with the phenomenal world ... is a skill so deeply hidden in the human soul that we shall hardly guess the secret trick that Nature here employs.
  • understanding

From the crooked timber of humanity, a straight board cannot be hewn.
  • humanity


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