Truth, like gold, is to be obtained not by its growth, but by washing away from it all that is not gold.

Memory is not a perfect recorder of events; it is a reconstructive process that can be influenced by many factors.

The only limits that exist are the ones in your mind.

There is no such thing as a special category of science called applied science; there is science and its applications, which are related to one another as the fruit is related to the tree that has borne it.