Sincerity is impossible unless it pervades the whole being; and the pretence saps the very foundations of character. Lowell.
Sincerity is the face of the soul, as dissimulation 30 is the mask. Daniel Dubay.
Sincerity is the indispensable ground of all conscientiousness, and by consequence of all heartfelt religion. Kant.
Sincerity is the way to heaven. To think how to be sincere is the way of man. Confucius.
Sincerity is true wisdom. Tillotson.
Sincerity makes the least man to be of more value than the most talented hypocrite. Spurgeon.
Sine amicitia vitam esse nullam—There is no 35 life without friendship. Cic.
Sine Cerere et Baccho, friget Venus—Without Ceres and Bacchus, Venus will starve to death, i.e., without sustenance and good cheer, love can't last. Ter.
Sine cortica natare—To swim without bladders.
Sine cura—Without care, i.e., in receipt of a salary without a care or office.