The biggest problem is not to let people accept new ideas, but to let them forget the old ones.

The Class war will find me on the side of the educated bourgeoisie.

The time has already come when each country needs a considered national policy about what size of population, whether larger or smaller than at present or the same, is most expedient. And having settled this policy, we must take steps to carry it into operation. The time may arrive a little later when the community as a whole must pay attention to the innate quality as well as to the mere numbers of its future members.

There is no intrinsic reason for the scarcity of capital.

It is investment, i.e. the increased production of material wealth in the shape of capital goods, which alone increases national wealth.

Long run is a misleading guide to current affairs. In the long run we are all dead.

Successful investing is anticipating the anticipations of others.