It's coexistence or no existence.

The essence of life is doing things for their own sakes.

It is undesirable to believe a proposition when there is no ground whatever for supposing it true

The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd; indeed in view of the silliness of the majority of mankind, a widely spread belief is more likely to be foolish than sensible.

I am sometimes shocked by the blasphemies of those who think themselves pious.

Sir Arthur Eddington deduces religion from the fact that atoms do not obey the laws of mathematics. Sir James Jeans deduces it from the fact that they do.

I do not pretend to start with precise questions. I do not think you can start with anything precise. You have to achieve such precision as you can, as you go along.