Wisdom is knowing what to do next, skill is knowing how to do it, and virtue is doing it.
David Starr Jordan
We do not place especial value on the possession of a virtue until we notice its total absence in our opponent.
Friedrich Nietzsche
Just as treasures are uncovered from the earth, so virtue appears from good deeds, and wisdom appears from a pure and peaceful mind. To walk safely through the maze of human life, one needs the light of wisdom and the guidance of virtue.
Buddha
Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.
Maya Angelou