“To know what people really think, pay attention to what they do, rather than what they say.”

Conquer yourself rather than the world.

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

You just keep pushing. You just keep pushing. I made every mistake that could be made. But I just kept pushing.

When I turn my mind’s eye upon myself, I understand that I am a thing which is incomplete and dependent on another and which aspires without limit to ever greater and better things…

Doubt is the origin of wisdom.

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

I took especially great pleasure in mathematics because of the certainty and the evidence of its arguments.

Mind and soul of the man is entirely different from the body.

So far, I have been a spectator in this theatre which is the world, but I am now about to mount the stage, and I come forward masked.

With me, everything turns into mathematics.

In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things

Except our own thoughts, there is nothing absolutely in our power.

I am accustomed to sleep and in my dreams to imagine the same things that lunatics imagine when awake.

In order to improve the mind, we ought less to learn than to contemplate.

I think; therefore I am.

To live without philosophizing is in truth the same as keeping the eyes closed without attempting to open them.

There is nothing more horrifying than stupidity in action.

If you should encounter angry or unkind actions today, take a deep breath, reach deep within and greet the lack of love with love.

The only difference between success and failure is the ability to take action.

Things not worth doing are not worth doing well.

We judge ourselves by our intentions. And others by their actions.

Learning is defined as a change in behavior. You haven’t learned a thing until you take action and use it.

Find what you can do best that renders service to others and do it with all your might.

Compassion is an unstable emotion. It needs to be translated into action, or it withers.