Only by being ruthless can you win the world. "Only by hook or crook can you make a fortune" is a copy on the Internet. The next sentence is "Only by ruthlessness can you secure the world." The whole sentence means that only by hooking yourself to wealth can you make a fortune and have a strong family. Obviously, this concept is very wrong. , is not worth learning. It has the same meaning as a person cannot get rich without windfall, and a horse cannot get fat without night grass.