The happy people are those who are producing something; the bored people are those who are consuming much and producing nothing.

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.

There is no limit to the noble aspirations which the words "my country" may evoke.

Don't get up from the feast of life without paying for your share of it.

In praising science, it does not follow that we must adopt the very poor philosophies which scientific men have constructed. In philosophy they have much more to learn than to teach.

The church that is married to the spirit of this age, becomes a widow in the next.

We tolerate shapes in human beings that would horrify us if we saw them in a horse.