You can easily judge the character of a man by how he treats those who can do nothing for him.

A noble soul alone can noble souls attract; And knows alone, as ye, to hold them. [Ger., Ein edler Mensch zieht edle Menschen an, Und weiss sie fest zu halten, wie ihr thut.]

The formation of one's character ought to be everyone's chief aim.

Talent develops in quiet, Character in the torrent of the world

Character is formed in the stormy billows of the world.

Judge a man's character by what he finds ridiculous.