“There is no genius without a touch of madness.”

Everyone rushes his life on, and suffers from a yearning for the future and a boredom with the present.

Sometimes even to live is an act of courage.

The thing that matters is not what you bear, but how you bear it.

True happiness is to enjoy the present, without anxious dependence upon the future, not to amuse ourselves with either hopes or fears but to rest satisfied with what we have, which is sufficient, for he that is so wants nothing.

Fire proves gold, adversity proves men.

A gift consists not in what is done or given, but in the intention of the giver or doer.

All cruelty springs from weakness.

Life is long, if you know how to use it.

Difficulties strengthen the mind, as labor does the body.

The Best sign of Wisdom is the consistency between the words and deeds.

The greatest blessings of mankind are within us and within our reach. A wise man is content with his lot, whatever it may be, without wishing for what he has not.

Life is like a play: it’s not the length, but the excellence of the acting that matters.

Often a very old man has no other proof of his long life than his age.

When you die, it will not be because you are sick, but because you were alive.

The great thing is to know when to speak and when to keep quiet.

Leisure without books is death, and burial of a man alive.

The day I am afraid to do, that is the day I am no longer fit to lead.

I feel like my job as CEO is always to be pushing people ahead.

You never lose a dream, it just incubates as a hobby.

You want to be extra rigorous about making the best possible thing you can. Find everything that’s wrong with it and fix it.

Work while others are wishing.

No great thing is created suddenly. There must be time. Give your best and always be kind.

If you only do things where you know the answer in advance, your company goes away.

He who knows all the answers has not been asked all the questions.