He who gains time gains all things同意句

If a person gains time,he will gain all things

gains, will gain

主将从现，即：if引导的条件状语从句用一般现在时表将来，而主句用将来时

有两种理解，一种当作客观真理：
If a person gains time,he will gain all things.
一种是虚拟：
If a person gained time, he would gain all things.

If a person gains time, he also gains all things

I don't even understand how on earth someone can gain time??