In imperialism nothing fails like success. If the conqueror oppresses his subjects, they will become fanatical patriots, and sooner or later have their revenge; if he treats them well, and governs them for their good, they will multiply faster than their rulers, till they claim their independence.

Even the paradise of fools is not an unpleasant abode while it is inhabitable.

Over-population is a phenomenon connected with the survival of the unfit, and it is a mechanism which has created conditions favourable to the survival of the unfit and the elimination of the fit.

The wise man is he who knows the relative value of things.

For better or worse, man is the tool-using animal, and as such he has become the lord of creation. When he is lord also of himself, he will deserve his self-chosen title homo sapiens.

Democracy is only an experiment in government, and it has the obvious disadvantage of merely counting votes instead of weighing them.

Nature takes away any faculty that is not used.