The whole art of teaching is only the art of awakening the natural curiosity of the mind for the purpose of satisfying it afterwards.

It is human nature to think wisely and act foolishly.

To accomplish great things, we must dream as well as act.

If we don't change, we don't grow. If we don't grow, we aren't really living.

Of all sexual aberrations, chastity is the strangest.

To accomplish great things we must not only act, but also dream; not only plan, but also believe.

Walk as if you are kissing the Earth with your feet.

It is not the mountains we conquer but ourselves.

It may not be that the race is not always to the swift, nor the battle to the strong - but that is the way to bet.

Success is a lousy teacher. It seduces smart people into thinking they can't lose.

Far away there in the sunshine are my highest aspirations. I may not reach them, but I can look up and see their beauty, believe in them, and try to follow where they lead.

There's no tyrant like a brain.

Do the difficult things while they are easy and do the great things while they are small. A journey of a thousand miles must begin with a single step.

Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you.

Experience is the name everyone gives to their mistakes.