The sincere friends of this world are as ship lights in the stormiest of nights.

There are no rules for friendship. It must be left to itself. We cannot force it any more than love.

Friendship, like the immortality of the soul, is too good to be believed.

Friendship is unnecessary, like philosophy, like art... It has no survival value rather it is one of those things that give value to survival.

Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.

Wishing to be friends is quick work, but friendship is a slow ripening fruit.

Friendship is the shadow of the evening, which increases with the setting sun of life.

One of the most beautiful qualities of true friendship is to understand and to be understood.

Real friendship, like real poetry, is extremely rare - and precious as a pearl.

It is only the great hearted who can be true friends. The mean and cowardly, Can never know what true friendship means.