Prison is a severe and terrible punishment; but for me, thanks to Arthur Balfour, this was not so. I was much cheered on my arrival by the warder at the gate, who had to take particulars about me. He asked my religion, and I replied 'agnostic.' He asked how to spell it, and remarked with a sigh: 'Well, there are many religions, but I suppose they all worship the same God.' This remark kept me cheerful for about a week.

Answering questions is a major part of sex education. Two rules cover the ground. First, always give a truthful answer to a question; secondly, regard sex knowledge as exactly like any other knowledge.

More cranks take up unfashionable errors than unfashionable truths.

What the world needs is not dogma but an attitude of scientific inquiry.

I conclude that, while it is true that science cannot decide questions of value, that is because they cannot be intellectually decided at all, and lie outside the realm of truth and falsehood. Whatever knowledge is attainable, must be attained by scientific methods; and what science cannot discover, mankind cannot know.

Abstract work, if one wishes to do it well, must be allowed to destroy one's humanity; one raises a monument which is at the same time a tomb, in which, voluntarily, one slowly inters oneself.

Organic life, we are told, has developed gradually from the protozoon to the philosopher, and this development, we are assured, is indubitably an advance. Unfortunately it is the philosopher, not the protozoon, who gives us this assurance.