Knowledge is represented in the mind as symbolic structures.
世界上最好和最美丽的东西是看不见甚至摸不到的——它们必须用心去感受。
LMFAO的生活方式
The real art of conversation is not only to say the right thing at the right place but to leave unsaid the wrong thing at the tempting moment.
Sometimes the best way to help the poor is to give them cash and let them decide how to spend it.