Sacra quercus. Holy oak. Holyoke.
Saepe pro rege, semper pro republica. Often for the king, always for the commonwealth. Vassall.
Sans changer. Without changing. Musgrave.
Sans Dieu je ne puis. Without God I cannot do it. Skipwith.
Sapienter si sincere. Wisely if sincerely. Davidson.
Secundis dubiisque rectus. Upright both in prosperity and perils. Wythe.
Seges votis respondet. The crop responds to the prayers. Hasty Pudding Club Library.
Semper caveto. Be always on guard. Ball.
Semper fidelis. Always faithful. Schuyler.
Semper idem. Always the same. Clark.