It is not titles that honor men, but men that honor titles.

Challenges are gifts that force us to search for a new center of gravity. Don't fight them. Just find a new way to stand.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

A perfection of means, and confusion of aims, seems to be our main problem.

There are no eternal facts, as there are no absolute truths.

Criticize the act, not the person.

Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy.

The greatest of all mistakes is to do nothing because you think you can only do a little

Anywhere you go in the world is what you make of it, not what you read in books.

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

Courage, above all things, is the first quality of a warrior.

I have no desire to make windows into mens souls

The wise man should restrain his senses like the crane and accomplish his purpose with due knowledge of his place, time and ability.

Man is the only creature who refuses to be what he is.

Men become wise just as they become rich, more by what they save than by what they receive.

One never notices what has been done; one can only see what remains to be done.

Good advice is always certain to be ignored, but that's no reason not to give it.

If you do not know the laws of right conduct, you cannot form your character.

Having a great intellect is no path to being happy.

Convictions are more dangerous enemies of truth than lies.

The most courageous act is still to think for yourself. Aloud.