Taoism
Tao Te Ching, Chapter 45
Text
1
Who thinks his great achievements poor Shall find his vigour long endure. Of greatest fulness, deemed a void, Exhaustion ne'er shall stem the tide. Do thou what's straight still crooked deem; Thy greatest art still stupid seem, And eloquence a stammering scream.
2
Constant action overcomes cold; being still overcomes heat. Purity and stillness give the correct law to all under heaven.
Translation: James Legge, The Tao Teh King (Sacred Books of the East, 1891), public domain.