Without change, something sleeps inside us, and seldom awakens. The sleeper must awaken.

The proximity of a desirable thing tempts one to overindulgence. On that path lies danger.

And always, he fought the temptation to choose a clear, safe course, warning 'That path leads ever down into stagnation.

All men seek to be enlightened. Religion is but the most ancient and honorable way in which men have striven to make sense out of God's universe. Scientists seek the lawfulness of events. It is the task of Religion to fit man into this lawfulness.

Historians exercise great power and some of them know it. They recreate the past, changing it to fit their own interpretations. Thus, they change the future as well.

A good companion is one you wouldn't mind dying with.

Those who would repeat the past must control the teaching of history.