"As a rule there are in everyone all sorts of good ideas, ready like tinder. But much of this tinder catches fire, or catches it successfully, only when it meets some flame or spark from outside, i.e. from some other person. Often, too, our own light goes out, and is rekindled by some experience we go through with a fellow-man. Thus we have each of us cause to think with deep gratitude of those who have lighted the flames within us."