realist

As a realist, the CEO prepared for the worst-case scenario instead of hoping for a miracle.

(Chinese) 作为一个现实主义者，首席执行官为最坏的情况做好了准备，而不是寄希望于奇迹。

He calls himself a realist, arguing that world peace is an impossible dream given human nature.

(Chinese) 他自称是一个现实主义者，认为鉴于人类的本性，世界和平是一个不可能实现的梦想。