There is far too much of the feeding-bottle in education and young people ought to be supplied with good intellectual food and then left to help themselves.

I care not what subject is taught, if only it be taught well.

Science ... warns me to be careful how I adopt a view which jumps with my preconceptions, and to require stronger evidence for such belief than for one to which I was previously hostile. My business is to teach my aspirations to conform themselves to fact, not to try and make facts harmonize with my aspirations.

Oh devil! truth is better than much profit. I have searched over the grounds of my belief, and if wife and child and name and fame were all to be lost to me one after the other as the penalty, still I will not lie.

What would become of the garden if the gardener treated all the weeds and slugs and birds and trespassers as he would like to be treated, if he were in their place?

Whatever evil voices may rage, Science, secure among the powers that are eternal, will do her work and be blessed.

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