Don't let the measurable drive out the relevant

That is the way to learn the most, that when you are doing something with such enjoyment that you don't notice that the time passes.

The Constitution only guarantees the American people the right to pursue happiness. You have to catch it yourself. A table, a chair, a bowl of fruit and a violin; what else does a man need to be happy?

We owe a lot to the Indians, who taught us how to count, without which no worthwhile scientific discovery could have been made.

Not until we dare to regard ourselves as a nation, not until we respect ourselves, can we gain the esteem of others, or rather only then will it come of its own accord

Ethical axioms are found and tested not very differently from the axioms of science. Truth is what stands the test of experience.

I myself should also be dead already, but I am still here.