John B. S. Haldane

“I have never yet met a healthy person who worried very much about his health, or a really good person who worried much about his own soul.”

“We do not know, in most cases, how far social failure and success are due to heredity, and how far to environment. But environment is the easier of the two to improve.”

“While I do not suggest that humanity will ever be able to dispense with its martyrs, I cannot avoid the suspicion that with a little more thought and a little less belief their number may be...”

“The extreme socialists desire to run every nation as a single business concern.”

“It is my supposition that the Universe in not only queerer than we imagine, is queerer than we can imagine.”

“There can be no truce between science and religion.”