Never contract friendship with a man that is not better than thyself.

Depth of friendship does not depend on length of acquaintance.

Always try to associate yourself closely with and learn as much as you can from those who know more than you, who do better than you, who see more clearly than you. Apart from the rewards of friendship, the association might pay off at some unforeseen time - that is only an accidental byproduct. The important thing is that the learning will make you a better person.

I've arrived at the age where a platonic friendship can be sustained on the highest moral plane.

It is not a lack of love, but a lack of friendship that makes unhappy marriages.

With friends, one is well; but at home, one is better.