Wisdom... comes not from age, but from education and learning.

Nothing fixes a thing so intensely in the memory as the wish to forget it.

Admiration is the daughter of ignorance.

The use of travelling is to regulate imagination by reality, and instead of thinking how things may be, to see them as they are.

Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.

Be sure you put your feet in the right place, then stand firm.

Criticize the act, not the person.

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

Science is organized knowledge. Wisdom is organized life.

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

If you would take, you must first give, this is the beginning of intelligence.

An intelligent hell would be better than a stupid paradise.

Only from the heart can you touch the sky.

It is tact that is golden, not silence.

Time wounds all heels.

Judge a man by his questions rather than by his answers.

Nothing is so strong as gentleness, nothing so gentle as real strength

To do great things is difficult, but to command great things is more difficult.

Be curious, not judgmental.

If you don't behave as you believe, you will end by believing as you behave.

Courage is resistance to fear, mastery of fear - not absence of fear.