“Know yourself better than your opponent knows you, know your opponent better than he knows himself, know yourself better than you know your opponent, and know you have all this knowledge and you will be victorious. That’s the advice I’ll give my clone before I defeat him in battle.”

“...if I've learned one thing in my decades on earth, it's this: Don't argue with your lizard brain; it knows you better than you know yourself.”

“Looking at you in a mirror makes you more of an ally than an opponent, because I’m standing next to you, rather than across from you. In fact, you are across from you, so you are your own opponent. And I’ll gladly stand by your side and help you defeat yourself.”

“You know more about your child than I can ever hope to know, what advice can you give me to make a better teacher for her?”

“Always dream and shoot higher than you know you can do. Do not bother just to be better than your contemporaries or predecessors. Try to be better than yourself.”

“You’re better off fighting hand to hand than wielding a weapon you don’t know how to use. A skilled opponent would simply disarm you. Then your troubles would be doubled. Not only would you be under attack, but you’d have to counter your own weapon”