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

So many new ideas are at first strange and horrible though ultimately valuable that a very heavy responsibility rests upon those who would prevent their dissemination.

An attempt to study the evolution of living organisms without reference to cytology would be as futile as an account of stellar evolution which ignored spectroscopy.

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.

It was a reaction from the old idea of "protoplasm", a name which was a mere repository of ignorance.

And if we must educate our poets and artists in science, we must educate our masters, labour and capital, in art.

Man armed with science is like a baby with a box of matches.