To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

"Every sentence is a leap of faith."

译文：纵欲放荡、消极怠慢就不能勉励心志使精神振作，冒险草率、急躁不安就不能修养性情。赏析：我们要是一直沉迷于物质享受，贪图享乐，做任何事就会消极懈怠。做事草率鲁莽，浮浮躁躁的，事情也会难以成功。