“Every effort under compulsion demands a sacrifice of energy. I never paid such a price.”

If you only knew the magnificence of the 3, 6 and 9, then you would have the key to the universe.

Life is and will ever remain an equation incapable of solution, but it contains certain known factors.

The practical success of an idea, irrespective of its inherent merit, is dependent on the attitude of the contemporaries.

A new idea must not be judged by its immediate results.

Each day we go to our work in the hope of discovering.

Electric power is everywhere present in unlimited quantities and can drive the world’s machinery without the need of coal, oil, gas, or any other of the common fuels.

Anti-social behavior is a trait of intelligence in a world full of conformists.

The entire Earth will be converted into a huge brain.

Let the future tell the truth, and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I have really worked, is mine

What one man calls God, another calls the laws of physics.

Most certainly, some planets are not inhabited, but others are, and among these there must exist life under all conditions and phases of development.

Perhaps I failed, but I did my best, These masters of mine may do the rest.

As I review the events of my past life I realize how subtle are the influences that shape our destinies.

From my childhood I had been intended for the clergy. This prospect hung like a dark cloud on my mind.

When natural inclination develops into a passionate desire, one advances towards his goal in seven-league boots.

The future will show whether my foresight is as accurate now as it has proved heretofore.

I am 67, but I’m not too old to make a fresh start.

If we want to have the biggest impact, the best way to do this is to make sure we always focus on solving the most important problems.

Entrepreneurs must be willing to be misunderstood for long periods of time.

We’re not going to be the first to this party, but we’re going to be the best.

Nothing is particularly hard if you divide it into small jobs.

That setback isn’t there to stop you; it’s there to promote you.

Black women are very capable of leading our organizations. I believe that firmly.

I don’t want to use my creative energy on somebody else’s user interface.