All sorts of bodily diseases are produced by half-used minds.

Life isn't about finding yourself. Life is about creating yourself.

Progress is impossible without change, and those who cannot change their minds, cannot change anything.

Two things define you: Your patience when you have nothing and your attitude when you have everything.

Beware of false knowledge; it is more dangerous than ignorance.

We don't stop playing because we grow old; we grow old because we stop playing.

I learned long ago, never to wrestle with a pig. You get dirty, and besides, the pig likes it.

People who say it cannot be done should not interrupt those who are doing it.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.

Write your Sad times in Sand, Write your Good times in Stone.

Islam is the best religion and Muslims are the worst followers

Don't be sad that it's over.Be glad that you ever lived to see it.

Though you see nothing, he is acting.

Right discipline consists, not in external compulsion, but in the habits of mind which lead spontaneously to desirable rather than undesirable activities.

Products have to be designed in a way that they are comprehensible.

We shouldn't be copying what we see. We should try to find our own sense of style, to believe in ourselves.

On the Night of the Halloween, I have never seen any evil apparition or fearsome ghost, but politicians on TV! They are the real goblins and specters!

I suspect that even though the various questions are difficult and many, they are not as difficult and many as those we faced when we started the Apollo [space program] in 1961.

We see God face to face every hour, and know the savor of Nature.

I look at people's lives and you see what's not working in their lives and it usually comes from an undisciplined mind.