Of all the means which wisdom acquires to ensure happiness throughout the whole of life, by far the most important is friendship.
Even when a friend does something you do not like, he continues to be your friend.
Associate with people who are likely to improve you.
Friendship is everything. Friendship is more than talent. It is more than the government. It is almost the equal of family.
The closest thing to a friend you can have in business is someone who finds it in their interest to be your friend.
In the end, we will remember not the words of our enemies, but the silence of our friends.