心理学必须阐明心灵的实际运作。

The most significant threat to liberal democracy comes from within, from the decay of institutions and the loss of trust in them.

读书人虽然有书本知识，但最根本的还是在于把书本知识变为实际行动。

我并不聪明，但我仅仅通过活着就学到了很多。

真正的幸福来自于内心的平静。