Joy and amazement of the beauty and grandeur of this world of which man can just form a faint notion.

Once we accept our limits, we go beyond them.

It is this mythical, or rather symbolic, content of the religious traditions which is likely to come into conflict with science. This occurs whenever this religious stock of ideas contains dogmatically fixed statements on subjects which belong in the domain of science.

Violence sometimes may have cleared away obstructions quickly, but it never has proved itself creative.

To get to know a country, you must have direct contact with the earth. It's futile to gaze at the world through a car window.

Time has no independent existence apart from the order of events by which we measure it.

Man is, at one and the same time, a solitary being and a social being.