A man's liberal and conservative phases seem to follow each other in a succession of waves from the time he is born. Children are radicals. Youths are conservatives, with a dash of criminal negligence. Men in their prime are liberals (as long as their digestion keeps pace with their intellect). The middle aged ... run to shelter: they insure their life, draft a will, accumulate mementos and occasional tables, and hope for security. And then comes old age, which repeats childhood—a time full of humors and sadness, but often full of courage and even prophecy.