Ben Sira 4:20

20 Take advantage of opportunities, but guard yourself against evil. Don't underrate yourself.

Ben Sira 4:20 In-Context

18 Then she will come to you with no delay, reveal her secrets to you, and make you happy.
19 But if you go astray, she will abandon you and let you go to your own ruin.
20 Take advantage of opportunities, but guard yourself against evil. Don't underrate yourself.
21 Humility deserves honor and respect, but a low opinion of yourself leads to sin.
22 Do not let others have their way at your expense; do not bring on your own ruin by giving up your rights.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.