Anyone who has never made a mistake has never tried anything new.

We cannot solve our problems with the same thinking we used when we created them.

Education is not the learning of facts, but the training of the mind to think.

Imagination is more important than knowledge. For knowledge is limited to all we now know and understand, while imagination embraces the entire world, and all there ever will be to know and understand

I believe in Spinoza’s God, who reveals Himself in the lawful harmony of the world, not in a God who concerns Himself with the fate and the doings of mankind

The Hardest Thing in the World to Understand is Income Taxes