Lay down this rule of friendship: neither ask nor consent to do what is wrong. The plea, 'for friendship's sake,' is a discreditable one, and should not be admitted for a moment. We should ask from friends and do for friends only what is good.

To give and receive advice - the former with freedom, and yet without bitterness, the latter with patience and without irritation - is peculiarly appropriate to geniune friendship.

History illumes reality, vitalizes memory, provides guidance in daily life

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.

There is in fact a true law namely right reason, which is in accordance with nature, applies to all men and is unchangeable and eternal. ... It will not lay down one rule at Rome and another at Athens, nor will it be one rule today and another tomorrow. But there will be one law eternal and unchangeable binding all times and upon all peoples.

Old age: the crown of life, our play's last act.

Friendship improves happiness and abates misery, by the doubling of our joy and the dividing of our grief.