The fate of animals is of greater importance to me than the fear of appearing ridiculous; it is indissolubly connected with the fate of men.
The proportion between the velocity with which men or animals move, and the weights they carry, is a matter of considerable importance, particularly in military affairs.
Child psychology and animal psychology are of relatively slight importance, as compared with the sciences which deal with the corresponding physiological problems of ontogeny and phylogeny.
The theoretical understanding of the world, which is the aim of philosophy, is not a matter of great practical importance to animals, or to savages, or even to most civilised men.
My object will be, first, to show by what connections the history of the fossil bones of land animals is linked to the theory of the earth and why they have a particular importance in this respect.
Animals, whom we have made our slaves, we do not like to consider our equal.
A work of art has no importance whatever to society. It is only important to the individual.