Ecclesiastes 7:9-11

Amplified Bible

⁹ 
Do not be eager in your heart to be angry,
For anger dwells in the heart of fools.^(A)
10 
Do not say, “Why were the old days better than these?”
For it is not from wisdom that you ask about this.
¹¹ 
Wisdom along with an inheritance is good
And an [excellent] advantage for those who see the sun.