The difference between stupidity and genius is th...

Intelligence without ambition is a b...

Thinking is the hardest work there is, which is probably the...

A smart man makes a mistake, learns from it, and never makes that mistake again. But a wise man finds a smart man...

Talent hits a target no one else can hit; Genius hits a...

There are no great limits to growth because there are no limits of human i...

Failure is simply the opportunity to begin again, th...

If everyone is thinking alike, then some...

We should not pretend to understand the world only by the intellect. The judgement o...

Intelligence is the ability to...

There is no great genius without som...

The mind is not a vessel to be filled but...