The number one key to success in life is sustaining your energy.
The key to happiness is good health and a bad memory
Knowledge is a treasure, but practice is the key to it.
I believe that one key to success is to accept truth, no matter how it's spoken.
The key is to keep company only with people who uplift you, whose presence calls forth your best.
Action is the foundational key to all success.
I don't know the key to success, but the key to failure is to try to please everyone.
There is no key to happiness, the door is always open.
Never put the key to your happiness in someone else’s pocket.
Learn to let go. That is the key to happiness.