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

Courage, above all things, is the first quality of a warrior.

It is divinity that shapes, not only your ends, but also your acts, your words and thoughts.

The more skilled you are at something, the worse you are at it when showing someone.

Out of suffering have emerged the strongest souls; the most massive characters are seared with scars.

Those who see the invisible can do the impossible.

Obsession is the wellspring of genius and madness.

Take care of the pieces well. The whole will take care of itself.

Men are not prisoners of fate, but only prisoners of their own minds.

Appearances often are deceiving.

Convictions are more dangerous enemies of truth than lies.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.

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.

Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.

The ultimate authority must always rest with the individual's own reason and critical analysis.

A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.

Do not pray for an easy life, pray for the strength to endure a difficult one.

Adapt what is useful, reject what is useless, and add what is specifically your own.

Those who can not change their minds can not change anything.

A person who spends more than he earns is a fool

Doubt is the origin of wisdom