The practice of that which is ethically best—what we call goodness or virtue—involves a course of conduct which, in all respects, is opposed to that which leads to success in the cosmic struggle for existence. In place of ruthless self-assertion it demands self-restraint; in place of thrusting aside, or treading down, all competitors, it requires that the individual shall not merely respect, but shall help his fellows... It repudiates the gladiatorial theory of existence... Laws and moral precepts are directed to the end of curbing the cosmic process.

— Thomas Henry Huxley

The question of the position of man, as an animal, has given rise to much disputation, with the result of proving that there is no anatomical or developmental character by which he is more widely distinguished from the group of animals most nearly allied to him, than they are from one another.

— Thomas Henry Huxley

There are savages without God in any proper sense of the word, but none without ghosts.

— Thomas Henry Huxley

There can be no doubt that the existing Fauna and Flora is but the last term of a long series of equally numerous contemporary species, which have succeeded one another, by the slow and gradual substitution of species for species, in the vast interval of time which has elapsed between the deposition of the earliest fossiliferous strata and the present day.

— Thomas Henry Huxley

The science, the art, the jurisprudence, the chief political and social theories, of the modern world have grown out of Greece and Rome—not by favor of, but in the teeth of, the fundamental teachings of early Christianity, to which science, art, and any serious occupation with the things of this world were alike despicable.

— Thomas Henry Huxley

The scientific spirit is of more value than its products, and irrationally held truths may be more harmful than reasoned errors.

— Thomas Henry Huxley

The tendency to variation in living beings, which all admitted as a matter of fact; the selective influence of conditions, which no one could deny being a matter of fact, when his attention was drawn to the evidence; and the occurrence of great geological changes which also was matter of fact; could be used as the only necessary postulates of a theory of the evolution of plants and animals which, even if not at once, competent to explain all the known facts of biological science, could not be shown to be inconsistent with any.

— Thomas Henry Huxley

Those who are ignorant of Geology, find no difficulty in believing that the world was made as it is; and the shepherd, untutored in history, sees no reason to regard the green mounds which indicate the site of a Roman camp, as aught but part and parcel of the primeval hill-side.

— Thomas Henry Huxley

To a clear eye the smallest fact is a window through which the infinite may be seen.

— Thomas Henry Huxley

Try to learn something about everything and everything about something.

— Thomas Henry Huxley