Reason unites us, not only with our contemporaries, but with men who lived two thousand years before us, and with those who will live after us.
The exercise of reason is not available only to specialists; it is accessible to everyone.
To imagine is the characteristic act, not of the poet's mind, or the painter's, or the scientist's, but of the mind of man.
Although I tried to be universal in thought, I am European by instinct and inclination.
