翻译：简单一点，平凡一点，幸福就会多一点

You will be happier if you keep a simple and ordinary mind.

简单一点，平凡一点，幸福就会多一点
If you could have an easier, simpler life, you will feel much happier.

简单一点，平凡一点，幸福就会多一点

A little bit more ordinary and simpler,the happier

简单一点，平凡一点，幸福就会多一点
A little simple， a little ordinary ，for a little more happiness.

附，单词参考：
I wish we could work up a little more support for the cause.
愿我们为此事业能得到再多一点支持。

楼上的语法错得离谱
The simpler,the happier!
The more ordinary, the happier!

the more simple, and ordinary, the more happy.