Proverbs 14:13-15

Amplified Bible

¹³ 
Even in laughter the heart may be in pain,
And the end of joy may be grief.
¹⁴ 
The backslider in heart will have his fill with his own [rotten] ways,
But a good man will be satisfied with his ways [the godly thought and action which his heart pursues and in which he delights].
¹⁵ 
The naive or inexperienced person [is easily misled and] believes every word he hears,
But the prudent man [is discreet and astute and] considers well where he is going.