How to write a copy with a life-long heart

How to write a copy of the unchanging heart of life is as follows?

1, keep your heart, no matter what your age, everyone has a child in their heart, that is the most innocent time.

2. Keeping the initial heart is the most difficult thing in the world, but it is the thing I want to do most.

3, youth, will eventually die, the pace will never stop, keep running, do not forget your active attitude, so as to achieve your ultimate goal.