"Tell me what you regard as your greatest strength, so I will know how best to undermine you; tell me of your greatest fear, so I will know which I must force you to face; tell me what you cherish most, so I will know what to take from you; and tell me what you crave, so that I might deny you..."

"Choose someone as a successor and you will inevitably be succeeded.
Choose someone hungrier and you will be devoured.
Choose someone quicker and you won't dodge the blade at your back.
Choose someone with more patience and you won't block the blade at your throat.
Choose someone more devious and you'll hold the blade that kills you.
Choose someone more clever and you'll never know your end.
Despite these cautions, an apprentice is essential. A Master without an apprentice is a Master of nothing."