A surprising number [of novels] have been read aloud to me, and I like all if moderately good, and if they do not end unhappily-against which a law ought to be passed.

Disbelief crept over me at a very slow rate, but at last it was complete.

With mammals the male appears to win the female much more through the law of battle than through the display of his charms.

The most important factor in survival is neither intelligence nor strength but adaptability.

Multiply, vary, let the strongest live and the weakest die.

An agnostic would be the more correct description of my state of mind.

Ultimately a highly complex sentiment, having its first origin in the social instincts, largely guided by the approbation of our fellow-men, ruled by reason, self-interest, and in later times by deep religious feelings, confirmed by instruction and habit, all combined, constitute our moral sense or conscience.