When my information changes, I alter my conclusions. What do you do, sir?

It would not be foolish to contemplate the possibility of a far greater progress still.

Ideas shape the course of history.

The disruptive powers of excessive national fecundity may have played a greater part in bursting the bonds of convention than either the power of ideas or the errors of autocracy.

Of the maxims of orthodox finance none, surely, is more anti-social than the fetish of liquidity, the doctrine of that it is a positive virtue on the part of investment institutions to concentrate their resources upon the holding of 'liquid' securities. It forgets that there is no such thing as liquidity of investment for the community as a whole.

It is the duty of the long-term investor to endure great losses with equanimity.

Galton's eccentric, sceptical, observing, flashing, cavalry-leader type of mind led him eventually to become the founder of the most important, significant and, I would add, genuine branch of sociology which exists, namely eugenics.