Imagination is the most powerful force in the universe.

The definition of genius is taking the complex and making it simple.

Concepts that have proven useful in ordering things easily achieve such authority over us that we forget their earthly origins and accept them as unalterable givens.

This is too difficult for a mathematician. It takes a philosopher. The hardest thing in the world to understand is the income tax.

[O]nly if every individual strives for truth can humanity attain a happier future; the atavisms in each of us that stand in the way of a friendlier destiny can only thus be rendered ineffective.

Creative energy is more critical than learning.

Logic can take you from point A to point B. Imagination can take you wherever you want