Want of pluck shows want of blood.

The geese are fed, but you have to pluck them

It takes a surprising amount of courage to place one's hand into an unseen area when your mind is thinking about vermin.

Every hare may pluck the dead lion's mane

Any coward can fight a battle when he's sure of winning; but give me the man who has pluck to fight when he's sure of losing. That's my way, sir; and there are many victories worse than a defeat.

Today one may pluck out one's very heart and not find it.