The good times of today are the sad thoughts of tomorrow.

Remember upon the conduct of each depends the fate of all.

He who never made a mistake, never made a discovery.

I don't try to imagine a personal god; it suffices to stand in awe at the structure of the world, insofar as it allows our inadequate senses to appreciate it.

To forbid us anything is to make us have a mind for it.

The idea is to write it so that people hear it and it slides through the brain and goes straight to the heart.

For the meaning of life differs from man to man, from day to day and from hour to hour. What matters, therefore, is not the meaning of life in general but rather the specific meaning of a person's life at a given moment.

The cloud is free only to go with the wind. The rain is free only in falling.

It is by no means an irrational fancy that, in a future existence, we shall look upon what we think our present existence, as a dream.

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

I love Madrid. I am happy to be here. I have been here three years and hope to be here longer. But I am proud of where I come from and never forget the people I grew up with.

Be that self which one truly is.

It ain't over 'til it's over.

He who surpasses or subdues mankind must look down on the hate of those below.

To turn really interesting ideas and fledgling technologies into a company that can continue to innovate for years, it requires a lot of disciplines.

If you talk bad about country music, it's like saying bad things about my momma. Them's fightin' words.

Passion goes, Boredom remains.

There is an eloquence in true enthusiasm.

Forewarned, forearmed. To be prepared is half the victory.

A photograph can be an instant of life captured for eternity that will never cease looking back at you.

Pretty much, Apple and Dell are the only ones in this industry making money. They make it by being Wal-Mart. We make it by innovation.