Knowing others is ...

Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power.
Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power.
 Lao Tzu

More phrases

If one does not know to which port one is sailing, no wind is favorable.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
We are masters of the unsaid words, but slaves of those we let slip out.
I have always found that mercy bears richer fruits than strict justice.
A lie gets halfway around the world before the truth has a chance to get its pants on.

Quotes from the same author

“Health is the greatest possession. Contentment is the greatest treasure. Confidence is the greatest friend.”
 Lao Tzu
Health is the greatest possession. Contentment is the greatest treasure. Confidence is the greatest friend.
 Lao Tzu
Being deeply loved by someone gives you strength while loving someone deeply gives you courage.
 Lao Tzu
Life is a series of natural and spontaneous changes. Don't resist them; that only creates sorrow. Let reality be reality. Let things flow naturally forward in whatever way they like.
 Lao Tzu
If you do not change direction, you may end up where you are heading.
 Lao Tzu