Be nothing solicitous; but in every thing, by prayer and supplication, with thanksgiving, let your petitions be made known to God. And the peace of God, which surpasseth all understanding, keep your hearts and minds in Christ Jesus. For the rest, brethren, whatsoever things are true, whatsoever modest, whatsoever just, whatsoever holy, whatsoever lovely, whatsoever of good fame, if there be any virtue, if any praise of discipline, think on these things. The things which you have both learned, and received, and heard, and seen in me, these do ye, and the God of peace shall be with you. (Phillipians 4:6-9)
Excellent quote.