This sign I give you: every people speaks its tongue of good and evil, which the neighbor does not understand. It has invented its own language of customs and rights.

If you believed more in life you would fling yourself less to the moment.

Without passions you have no experience whatever.

When a nation is on the downward path, when it feels its belief in its own future, its hope of freedom slipping from it, when it begins to see submission as a first necessity and the virtues of submission as measures of self-preservation, then it must overhaul its God.

Without meaning, without substance, without aim: a mere 'public opinion'.

It is perhaps just dawning on five or six minds that physics, too, is only an interpretation and exegesis of the world (to suit us, if I may say so!) and not a world-explanation.

The golden age, when rambunctious spirits were regarded as the source of evil.