The struggle for existence holds as much in the intellectual as in the physical world. A theory is a species of thinking, and its right to exist is coextensive with its power of resisting extinction by its rivals.

Quote by Thomas Huxley

Topics: Thomas Huxley Quotes

I am content with nothing, restless and ambitious... and I despise myself for the vanity,...

I am content with nothing, restless and ambitious... and I despise myself for the vanity,...

Science and literature are not two things, but two sides of one thing.

Science and literature are not two things, but two sides of one thing.

Irrationally held truths may be more harmful than reasoned errors.

Irrationally held truths may be more harmful than reasoned errors.

The great tragedy of science - the slaying of a beautiful hypothesis by an ugly...

The great tragedy of science - the slaying of a beautiful hypothesis by an ugly...

The ultimate court of appeal is observation and experiment... not authority.

The ultimate court of appeal is observation and experiment... not authority.

Time, whose tooth gnaws away everything else, is powerless against truth.

Time, whose tooth gnaws away everything else, is powerless against truth.

The results of political changes are hardly ever those which their friends hope or their...

The results of political changes are hardly ever those which their friends hope or their...

Learn what is true in order to do what is right.

Learn what is true in order to do what is right.

No slavery can be abolished without a double emancipation, and the master will benefit by...

No slavery can be abolished without a double emancipation, and the master will benefit by...

The most considerable difference I note among men is not in their readiness to fall...

The most considerable difference I note among men is not in their readiness to fall...

Science reckons many prophets, but there is not even a promise of a Messiah.

Science reckons many prophets, but there is not even a promise of a Messiah.

The more rapidly truth is spread among mankind the better it will be for them....

The more rapidly truth is spread among mankind the better it will be for them....

The child who has been taught to make an accurate elevation, plan, and section of...

The child who has been taught to make an accurate elevation, plan, and section of...

Science is simply common sense at its best, that is, rigidly accurate in observation, and...

Science is simply common sense at its best, that is, rigidly accurate in observation, and...

Friendship involves many things but, above all the power of going outside oneself and appreciating...

Friendship involves many things but, above all the power of going outside oneself and appreciating...

Sit down before fact as a little child, be prepared to give up every conceived...

Sit down before fact as a little child, be prepared to give up every conceived...

The only freedom I care about is the freedom to do right; the freedom to...

The only freedom I care about is the freedom to do right; the freedom to...

All truth, in the long run, is only common sense clarified.

All truth, in the long run, is only common sense clarified.

It is the customary fate of new truths, to begin as heresies, and to end...

It is the customary fate of new truths, to begin as heresies, and to end...

The world makes up for all its follies and injustices by being damnably sentimental.

The world makes up for all its follies and injustices by being damnably sentimental.