When you introduce a moral lesson, let it be brief.
— Horace

I met a congressman who claimed that he could introduce me to two people who saw Amelia Earhart.
— Jim Sullivan

Kant introduced the concept of the negative into philosophy. Would it not also be worthwhile to try to introduce the concept of the positive into philosophy?
— Karl Wilhelm Friedrich Schlegel

Perhaps travel cannot prevent bigotry, but by demonstrating that all peoples cry, laugh, eat, worry, and die, it can introduce the idea that if we try and understand each other, we may even become friends.
— Maya Angelou

Architecture worth great attention. As we double our numbers every 20 years we must double our houses. Besides we build of such perishable materials that one half of our houses must be rebuilt in every space of 20 years. So that in that term, houses are to be built for three fourths of our inhabitants. It is then among the most important arts: and it is desireable to introduce taste into an art which shews so much.
— Thomas Jefferson