Day 2 companies make high-quality decisions, but they make high-quality decisions slowly. To keep the energy and dynamism of Day 1, you have to somehow make high-quality, high-velocity decisions.

建筑是一种挑战，是对极限的挑战。

If you're afraid to fail then you're probably going to fail.

每一个挑战都是学习和成长的机会。