please、the mother of 、never too old to、begin with

1.  It is hard to please all. 众口难调。

2.  Experience is the mother of wisdom. 实践出真知。

3.  East or west，home is the best. 金窝银窝不如自家草窝。

4.  It's never too old to learn. 活到老，学到老。

5.  A journey of a thousand miles begins with a single step.千里之行始于足下。