Every mental state is a function of some physical state of the brain.
做好事如同背负重物而登山,志向虽已确立,但总是担心力不从心;干坏事如同骑马下山,虽然未加鞭,但却欲驻足而难以自禁。
当我们错把地图当作疆域时,哲学便是指回现实的罗盘。
"The past is always tense, the future perfect."