The ordinary scientific man is strictly a sentimentalist. He is a sentimentalist in this essential sense, that he is soaked and swept away by mere associations.

The modern habit of saying "This is my opinion, but I may be wrong" is entirely irrational. If I say that it may be wrong, I say that is not my opinion. The modern habit of saying "Every man has a different philosophy; this is my philosophy and it suits me" – the habit of saying this is mere weak-mindedness. A cosmic philosophy is not constructed to fit a man; a cosmic philosophy is constructed to fit a cosmos. A man can no more possess a private religion than he can possess a private sun and moon.

When you have really exhausted an experience you always reverence and love it. The two things that nearly all of us have thoroughly and really been through are childhood and youth. And though we would not have them back again on any account, we feel that they are both beautiful, because we have drunk them dry.

A man cannot deserve adventures; he cannot earn dragons and hippogriffs.

Every one of the great revolutionists, from Isaiah to Shelley, have been optimists. They have been indignant, not about the badness of existence, but about the slowness of men in realizing its goodness.

But a somewhat more liberal and sympathetic examination of mankind will convince us that the cross is even older than the gibbet, that voluntary suffering was before and independent of compulsory; and in short that in most important matters a man has always been free to ruin himself if he chose.

In the glad old days, before the rise of modern morbidities...it used to be thought a disadvantage to be misunderstood.