身体单薄无力，就不要去背负重物，说话没有分量，就不要去规劝别人；没有钱就不要到人群中去，遭遇困难之际千万别去寻求亲戚的帮助。

我们成功的真正标准不仅仅是利润，还有我们留下的积极影响。

There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.

The hardest thing to explain is the glaringly evident which everybody had decided not to see.

建筑中唯一真正重要的是空间的质量。