The writings of women are always cold and pretty like themselves. There is as much wit as you may desire, but never any soul.

All kinds of frankness and honesty are terrible crimes in the eyes of society.

It is a mania shared by philosophers of all ages to deny what exists and to explain what does not exist.

He who eats in idleness that which he himself has not earned, steals it; and a capitalist whom the state pays for doing nothing differs little in my eyes from a brigand, who lives at the expense of passers-by.

Fame is but the breath of people, and that often unwholesome.

The indifference of children towards meat is one proof that the taste for meat is unnatural; their preference is for vegetable foods...Beware of changing this natural taste and making children flesh-eaters, if not for their health's sake, for the sake of their character; for how can one explain away the fact that great meat-eaters are usually fiercer and more cruel than other men; this has been recognised at all times and in all places.

Chemistry... is like the maid occupied with daily civilisation; she is busy with fertilisers, medicines, glass, insecticides ... for she dispenses the recipes.