Real knowledge is to know the extent of one's ignorance.

Share our similarities, celebrate our differences.

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

Sometimes one creates a dynamic impression by saying something, and sometimes one creates as significant an impression by remaining silent.

There's no sense in being precise when you don't even know what you're talking about.

Each problem that I solved became a rule which served afterwards to solve other problems.

Act as if the maxim of your action were to become through your will a general natural law

Honesty is the first chapter in the book of wisdom.

A single lie destroys a whole reputation of integrity.

If you don't want to slip up tomorrow, speak the truth today.

Creativity is the process of having original ideas that have value.

We choose our joys and sorrows long before we experience them.

Instinct is a marvellous thing. It can neither be explained nor ignored.

Common sense is in spite of, not as the result of education.

True knowledge lies in knowing how to live.

The only way to get the best of an argument is to avoid it.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

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

In anger we should refrain both from speech and action.

Never put off for tomorrow, what you can do today.

It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.