The test of a first rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
I strongly believe that fundamental science cannot be driven by instructional, industrial and government or military pressures.
Maybe true travel is not the transportation of the body, but a change of perception, renewing the mind.
The whole of science is nothing more than a refinement of everyday thinking.
A man who dares to waste one hour of time has not discovered the value of life.
Spoon feeding in the long run teaches us nothing but the shape of the spoon.
An expert is a person who has made all the mistakes that can be made in a very narrow field.
Everything must be made as simple as possible. But not simpler.
That which can be asserted without evidence, can be dismissed without evidence.
The whole difference between construction and creation is exactly this: that a thing constructed can only be loved after it is constructed; but a thing created is loved before it exists.