No obligation to do the impossible is binding.

In ancient times music was the foundation of all the sciences. Education was begun with music with the persuasion that nothing could be expected of a man who was ignorant of music.

Ignorance of impending evil is far better than a knowledge of its approach.

I will go further, and assert that nature without culture can often do more to deserve praise than culture without nature.

The long time to come when I shall not exist has more effect on me than this short present time, which nevertheless seems endless.

Hatreds not vowed and concealed are to be feared more than those openly declared.

Wars are to be undertaken in order that it may be possible to live in peace without molestation.