What's the world's greatest lie?... It's this: that at a certain point in our lives, we lose control of what's happening to us, and our lives become controlled by fate.

We are what our thoughts have made us; so take care about what you think. Words are secondary. Thoughts live; they travel far.

Know thyself.

Freedom from the desire for an answer is essential to the understanding of a problem.

Only when I fall do I get up again.

The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.

If you enter this world knowing you are loved and you leave this world knowing the same, then everything that happens in between can be dealt with.

Life is entrusted to man as a treasure which must not be squandered, as a talent which must be used well.

If my mind can conceive it, and my heart can believe it - then I can achieve it.

I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.

Repetition of the same thought or physical action develops into a habit which, repeated frequently enough, becomes an automatic reflex.

How long should you try? Until.

It's not the load that breaks you down, it's the way you carry it.

Knowing what's right doesn't mean much unless you do what's right.

The limits of the possible can only be defined by going beyond them into the impossible.

You see things; you say, 'Why?' But I dream things that never were; and I say 'Why not?

Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.

Once you learn to quit, it becomes a habit.

Only in the darkness, you are able to see the stars.

There is always room at the top.

People are capable, at any time in their lives, of doing what they dream of.