Success always necessitates a degree of ruthlessness. Given the choice of friendship or success, I'd probably choose success.

No person is your friend who demands your silence, or denies your right to grow.

Friendship is a strong and habitual inclination in two persons to promote the good and happiness of one another.

True friendship can afford true knowledge. It does not depend on darkness and ignorance.

A friend may well be reckoned the masterpiece of nature.

Friendship improves happiness and abates misery, by the doubling of our joy and the dividing of our grief.

A man's growth is seen in the successive choirs of his friends.

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

Never make friends with people who are above or below you in status. Such friendships will never give you any happiness.

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