历史给我们的教训是，人们从来都不知道汲取历史的教训。

Profit should never come at the expense of the planet.

The only way to discover the limits of the possible is to go beyond them into the impossible.

Un libro es un diálogo infinito entre el autor y el lector.

The only way of discovering the limits of the possible is to venture a little way past them into the impossible.

贪婪读书，终生学习，保持好奇，日日增慧。