For better or worse, man is the tool-using animal, and as such he has become the lord of creation. When he is lord also of himself, he will deserve his self-chosen title homo sapiens.

What is originality? Undetected plagiarism.

"This is old, therefore it is good"; the other says, "This is new, therefore it is better."

Whoever marries the spirit of this age will find himself a widower in the next.

If the universe is running down like a clock, the clock must have been wound up at a date which we could name if we knew it. The world, if it is to have an end in time, must have had a beginning in time.

The jealous man is so preoccupied with what he hasn't got that he fails to appreciate the value of what he has got. He loses the ability to feel glad because the sun is shining. He doesn't see the wonder and the newness of the beginning of spring.

Hatred toward any human being cannot exist in the same heart as love to God.