The businessman is only tolerable so long as his gains can be held to bear some relation to what, roughly and in some sense, his activities have contributed to society.

The importance of money flows from it being a link between the present and the future.

When the facts change, I change my mind.

If human nature felt no temptation to take a chance there might not be much investment merely as a result of cold calculation.

The right remedy for the trade cycle is not to be found in abolishing booms and thus keeping us permanently in a semi-slump; but in abolishing slumps and thus keeping us permanently in a quasi-boom.