智に働けば角が立つ。情に棹させば流される。意地を通せば窮屈だ。兎角に人の世は住みにくい。
Notes from Wikiquote
Translation: Use your intellect to guide you, and you will end up putting people off. Rely on your emotions, and you will forever be pushed around. Force your will on others, and you will live in constant tension. There is no getting around it—people are hard to live with. | 草枕 Kusamakura, 1906.