"Friends are those rare people who ask how we are and then wait to hear the answer."

"Two persons cannot long be friends if they cannot forgive each other's little failings."

"Friendship increases in visiting friends, but in visiting them seldom."

"There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth."

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

"Friendship is a very taxing and arduous form of leisure activity."