His cynical view was that everyone was motivated solely by self-interest.

cynical 来自古希腊哲学流派"犬儒主义"(Cynicism)，词根 cyn- 意为"狗"，后缀 -ical 表示"具有...特性的"。这个词形容一种认为人性自私、不相信他人真诚的消极态度，常译为"愤世嫉俗的"或"冷嘲热讽的"。