Choose rather to be strong of soul than strong of body.

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

Rest satisfied with doing well, and leave others to talk of you as they please.

Thought can be so seductive and hypnotic that it absorbs your attention totally, so you become your thoughts.

Almost every wise saying has an opposite one, no less wise, to balance it.

Act enthusiastic and you will be enthusiastic

Where you stand depends on where you sit.

So many people have this idea: I want to achieve something great or be somebody great. And they neglect the step that leads to greatness. They don't honor this step at this moment because they have this idea of some future moment where they are going to be great.

Whatever you think the world is withholding from you, you are withholding from the world.

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

Nothing is as easy as it looks.

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

In moments of great grief, that’s where you look and immerse yourself. You realise you are not immortal, you are not a god, you are part of the natural world and you come to accept that.

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

Promises are like crying babies in a theater, they should be carried out at once.

We may encounter many defeats but we must not be defeated.

Wise men speak because they have something to say; Fools because they have to say something.

Things which matter most must never be at the mercy of things which matter least.

Destiny is not a passive agent that lies in the lap of the Gods, but is an active instrument that lies in your own hands to shape as you will.

There is a wisdom of the head, and... there is a wisdom of the heart.

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