From Lao-Tzu"s Tao Te Ching 

 
Some say that my teaching is nonsense.
Others call it lofty but impractical.
But to those who have looked inside themselves,
this nonsense makes perfect sense.
And to those who put it into practice, 
this loftiness has roots that go deep.
‍
I have just three things to teach:
simplicity, patience, compassion.
These three are your greatest treasures.
Simple in actions and in thoughts,
you return to the source of being.
Patience with both friends and enemies,
you accord with the way things are.
Compassionate toward yourself,
you reconcile all beings in the world.

― Lao-Tzu (from The Enlightened Heart: An Anthology of Sacred Poetry edited by Stephen Mitchell)