The more you know, the more you realize you don't know.

Whether you come from a council estate or a country estate, your success will be determined by your own confidence and fortitude.

Profit and purpose are not opposites; they must go hand in hand.

To understand the mind, study its operations in real life.

The most damaging phrase in the language is: 'It's always been done this way.'

When you tear out a man's tongue, you are not proving him a liar. You're only telling the world that you fear what he might say.