Henri Bergson

Intelligence is the faculty of making artificial objects, especially tools to make tools.

To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.

Think like a man of action, act like a man of thought.

Our revenge will be the laughter of our children.

But with each passing year and each new study, the evidence for the genetic contribution to individual and group differences becomes more firmly established than ever.