The difference between the amoeba and Einstein is that, although both make use of the method of trial and error elimination, the amoeba dislikes erring while Einstein is intrigued by it.

True ignorance is not the absence of knowledge, but the refusal to acquire it.

The growth of knowledge depends entirely upon disagreement.

In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it does not speak about reality.

The question is not how to get good people to rule; THE QUESTION IS: HOW TO STOP THE POWERFUL from doing as much damage as they can to us.

If you can't say it simply and clearly, keep quiet, and keep working on it till you can.

The best thing that can happen to a human being us to find a problem, to fall in love with that problem, and to live trying to solve that problem, unless another problem even more lovable appears.

Ignorance is not a simple lack of knowledge but an active aversion to knowledge, the refusal to know, issuing from cowardice, pride, or laziness of mind.

A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.

I may be wrong and you may be right, and by an effort, we may get nearer to the truth

The attempt to make heaven on earth invariably produces hell.

Forgiveness is the fruit of fellowship.

Daily ripples of excellence -over time- become a tsunami of success

It is true of the Nation, as of the individual, that the greatest doer must also be a great dreamer.

If thou love each thing thou wilt perceive the mystery of God in all.

I'm used to being efficient and a guy that can do more than the average guy can.

Atmosphere in a painting is nine-tenths fear.

Once I learned to read, I could not imagine my life otherwise.

That painter who has no doubts will achieve little.

Retirement accords with the tone of my mind; I will not descend to a world I despise.

I believe that luck is opportunity meeting preparation.