Innovation in stone extraction must always balance efficiency with sustainability.《Stone and Stewardship》

It is hard to imagine a more stupid or more dangerous way of making decisions than by putting those decisions in the hands of people who pay no price for being wrong.

教育就是激发生命，充实生命，协助孩子们用自己的力量生存下去，并帮助他们发展这种精神。

Les chères mains qui furent miennes.

一切都是旧的。没有别的。曾经尝试过，曾经失败过。没关系。再试一次。再失败一次。失败得更好一点。