you brought up brains so a couple of verses came to mind. This is from our Creator who gave us out minds.

1 Corinthians 1:18

For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.

2 Timothy 1:7

For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind.