Per varios casus. By various fortunes. Mercer.
Perge coepisti. Go on as you have begun. Ten Broeck.
Perit ut vivat. He dies that he may live. Fenwick. Magill.
Persevere. Gallatin.
Pia mente studeatur. Study with reverent mind. Phillips Academy.
Piety is peace. Hopkins.
Post tenebras speramus lumen de lumine. After the darkness we hope for the light of the day. Coffin.
Postero ne credo. Trust not the future. Cutting.
Praestat opes sapientia. Wisdom excels wealth. Livingston.
Pro aris et focis. For our altars and our firesides. Bloomfield.