Friends are born, not made.
One friend in a lifetime is much; two are many; three are hardly possible. Friendship needs a certain parallelism of life, a community of thought, a rivalry of aim.
A doubtful friend is worse than a certain enemy. Let a man be one thing or the other, and we then know how to meet him.
The man of knowledge must be able not only to love his enemies but also to hate his friends.
Do not protect yourself by a fence, but rather by your friends.
A friend is one who believes in you when you have ceased to believe in yourself.
Build bridges instead of walls and you will have a friend.
Advice from your friends is like the weather, some of it is good, some of it is bad.
