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

There is nothing of permanent value (putting aside a few human affections) nothing that satisfies quiet reflection--except the sense of having worked according to one's capacity and light to make things clear and get rid of cant and shams of all sorts.

It is not who is right, but what is right, that is of importance.

That which endures is not one or another association of living forms, but the process of which the cosmos is the product, and of which these are among the transitory expressions.

Books are the money of Literature, but only the counters of Science.

The world is neither wise nor just, but it makes up for all its folly and injustice by being damnably sentimental.

History warns us that it is the customary fate of new truths to begin as heresies and to end as superstitions.