You cannot prove realism to a complete sceptic or idealist; but you can show an honest man that he is not a complete sceptic or idealist, but a realist at heart. So long as he is alive his sincere philosophy must fulfil the assumptions of his life and not destroy him.

A man is morally free when, in full possession of his living humanity, he judges the world, and judges other men, with uncompromising sincerity.

If all art aspires to the condition of music, all the sciences aspire to the condition of mathematics.

Any attempt to speak without speaking any particular language is not more hopeless than the attempt to have a religion that shall be no religion in particular.... Every living and healthy religion has a marked idiosyncrasy. Its power consists in its special and surprising message and the bias which that revelation gives to life.

Philosophy may describe unreasoning, as it may describe force; it cannot hope to refute them.

The works of nature first acquire a meaning in the commentaries they provoke.

A country without a memory is a country of madmen.