The teacher, like the artist, the philosopher, and the man of letters, can only perform his work adequately if he feels himself to be an individual directed by an inner creative impulse, not dominated and fettered by an outside authority.

Insight, untested and unsupported, is an uncertain guarantee of the truth.

It's not what you have lost, but what you have left that counts.

What is wanted is not the will to believe, but the will to find out, which is the exact opposite.

When considering marriage one should ask oneself this question; 'will I be able to talk with this person into old age?' Everything else is transitory, the most time is spent in conversation.

I consider the official Catholic attitude on divorce, birth control, and censorship exceedingly dangerous to mankind.

Science is no substitute for virtue; the heart is as necessary for a good life as the head.