In all human action not that which is common to man and the animals is the characteristic element, but that which distinguishes him from them.

Even if we admit the physical basis, and resolve all virtue into health of body 'la facon que notre sang circule,' still on merely physical grounds we must come back to ideas.

Mind and reason and duty and conscience, under these or other names, are always reappearing.
There cannot be health of body without health of mind; nor health of mind without the sense of duty and the love of truth (Charm).
That the greatest of ancient philosophers should in his regulations about marriage have fallen into the error of separating body and mind, does indeed appear surprising.

Yet the wonder is not so much that Plato should have entertained ideas of morality which to our own age are revolting, but that he should have contradicted himself to an extent which is hardly credible, falling in an instant from the heaven of idealism into the crudest animalism.

Rejoicing in the newly found gift of reflection, he appears to have thought out a subject about which he had better have followed the enlightened feeling of his own age.