我们不是通过经验学习，而是通过对经验的反思学习。
预测未来的最佳方式就是创造未来。
牛、猪、战争和女巫：文化的谜题通过理解生活的物质条件而解决。
In the end, we are all alone with our thoughts.
The discipline of the written word punishes both stupidity and dishonesty.