1892-1964, British Scientist, Author
A fairly bright boy is far more intelligent and far better company than the average adult.
John B. S. Haldane – [Boys]


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.
John B. S. Haldane – [Health]


I wish I had the voice of Homer to sing of rectal carcinoma.
John B. S. Haldane – [Cancer]


In fact, words are well adapted for description and the arousing of emotion, but for many kinds of precise thought other symbols are much better.
John B. S. Haldane – [Words]


My own suspicion is that the universe is not only queerer than we suppose, but queerer than we can suppose.
John B. S. Haldane – [Universe]


The wise man regulates his conduct by the theories both of religion and science. But he regards these theories not as statements of ultimate fact but as art-forms.
John B. S. Haldane – [Theory]


Until politics are a branch of science we shall do well to regard political and social reforms as experiments rather than short-cuts to the millennium.
John B. S. Haldane – [Reform]


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.
John B. S. Haldane – [Success]


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 substantially reduced.
John B. S. Haldane – [Martyrdom]