Every truth has two sides; it is as well to look at both, before we commit ourselves to either.

No amount of evidence will ever persuade an idiot.

There are only two kinds of people, those who accept dogmas and know it, and those who accept dogmas and don't know it.

It is hard to fight desire; but to control it is the sign of a reasonable man.

In this age, the man who dares to think for himself and to act independently does a service to his race.

Almost every significant breakthrough is the result of a courageous break with traditional ways of thinking.

Emotions are inherent in your nature, but their content is dictated by your mind.

We hang the petty thieves and appoint the great ones to public office.

Be true to your work, your word, and your friend.

None of us knows what might happen even the next minute, yet still we go forward. Because we trust. Because we have Faith.

If you cannot be honest with yourself, there is no hope of being honest with anyone else.

The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd; indeed in view of the silliness of the majority of mankind, a widespread belief is more likely to be foolish than sensible.

Without properly kept accounts it is impossible to maintain truth in its pristine purity.