To an ill-conditioned being all pleasure is like delicate wine in a mouth embittered with gall. Schopenhauer.
To answer a question so as to admit of no reply, is the test of a man. Emerson.
To appear well-bred, a man must actually be 35 so. Goethe.
To appreciate the noble is a gain which can never be torn from us. Goethe.
To arrive at perfection, a man should have very sincere friends or inveterate enemies; because he would be made sensible of his good or ill conduct, either by the censures of the one or the admonitions of the other. Diogenes.
To attack vices in the abstract without touching persons, may be safe fighting indeed, but it is fighting with shadows. Junius.
To banish care, scare away sorrow, and soothe pain is the business of the poet, or singer (Sänger). Bodenstedt.
To be a good poet and painter genius is required, 40 and this cannot be communicated. Goethe.
To be a man's own fool is bad enough; but the vain man is everybody's. William Penn.
To be a philosopher is but a retreat from the world, as it is man's, into the world, as it is God's. Cowley.