When you learn, teach, when you get, give.

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

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

The experience gathered from books, though often valuable,is but the nature of learning whereas the experience gained from actual life is of the nature of wisdom.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

It is not enough to have a good mind; the main thing is to use it well.

We thought that we had the answers, it was the questions we had wrong.

In anger we should refrain both from speech and action.

If I speak of myself in different ways, that is because I look at myself in different ways.

Nothing is softer or more flexible than water, yet nothing can resist it.

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

It is better to be looked over than overlooked.

There is nothing more uncommon than common sense.

Nobody made a greater mistake than he who did nothing because he could do only a little.

A person who spends more than he earns is a fool

It was a melancholy secret that reality can arouse desires but never satisfy them.

Kind words don't cost much. Yet they accomplish much.

All great achievements require time.

Why fit in when you were born to stand out?

A scholar who cherishes the love of comfort is not fit to be deemed a scholar.

There are no limitations to the mind except those we acknowledge.