As good sight means seeing what is very small
So strength means holding on to what is weak.
 Lao Tzu, Tao Te Ching. copy citation

add
Author Lao Tzu
Source Tao Te Ching
Topic strength sight
Date
Language English
Reference
Note Translated by Arthur Waley
Weblink https://terebess.hu/english/tao/waley.html

Context

“And to the end of his days suffer no harm; “Block the passages, shut the doors, And till the end your strength shall not fail. Open up the passages, increase your doings, And till your last day no help shall come to you.” As good sight means seeing what is very small So strength means holding on to what is weak. He who having used the outer-light can return to the innerlight Is thereby preserved from all harm. This is called resorting to the always-so. up 53 He who has the least scrap of sense, Once he has got started on the great highway has nothing to fear” source