"It may be that when we no longer know what to do, we have come to our real work, and when we no longer know which way to go, we have begun our real journey."

"The light at the end of the tunnel is not an illusion. The tunnel is."

"Remember that the airplane takes off against the wind, not with it."

"Don't look up at the whole mountain… focus on that next step, and do the next right thing."