The key to progress is persistence and a willingness to challenge conventional wisdom.

解释：局势安定的国家，常常是富足的；局势 动乱的国家，常常是贫穷的。

Do the right thing, not the easy thing.

I always say, decisions I make, I live with them. There's always ways you can correct them or ways you can do them better. At the end of the day, I live with them.

建筑应该是个好邻居。