Amicus animæ dimidium—A friend the half of life.

Amicus certus in re incerta cernitur—A true 35 friend is seen when fortune wavers. Ennius.

Amicus curiæ—A friend to the court, i.e., an uninterested adviser in a case.

Amicus est unus animus in duobus corporibus—A friend is one soul in two bodies. Arist.

Amicus humani generis—A friend of the human race.

Amicus Plato, sed magis amica veritas—Plato is my friend, but truth is my divinity (lit. more a friend).

Amicus usque ad aras—A friend to the very 40 altar, i.e., to the death.

A mighty maze! but not without a plan. Pope.

A millstone and a man's heart are kept constantly revolving; where they have nothing to grind, they grind and fray away their own substance. Logan.

A mirror is better than a whole gallery of ancestral portraits. Menzel.