Thoughts are powerful
So be careful

One of the new things people began to find out in the last century was that thoughts—just mere thoughts—are as powerful as electric batteries—as good for one as sunlight is, or as bad for one as poison. To let a sad thought or a bad one get into your mind is as dangerous as letting a scarlet fever germ get into your body. If you let it stay there after it has got in you may never get over it as long as you live... surprising things can happen to any one who, when a disagreeable or discouraged thought comes into his mind, just has the sense to remember in time and push it out by putting in an agreeable determinedly courageous one. Two things cannot be in one place.

"Where you tend a rose, my lad, A thistle cannot grow.

I think now that maybe true sweetness can only happen in limbo. I don't know why. Is it because we are so unsure, so tentative and waiting? Like it needs that much room, that much space to expand. The not knowing anything really, the hoping, the aching transience: This is not real, not really, and so we let it alone, let it unfold lightly. Those times that can fly.

If you do not actually know the story, then do not pretend you can tell it.

Sometimes the only way to leave is out the front door

If you know where you are going, you are not learning. (p. 16)