A bitter and perplex'd "What shall I do?" is worse to man than worst necessity. Schiller.
A black hen will lay a white egg. Pr. 40
A blind man should not judge of colours. Pr.
A blockhead can find more faults than a wise man can mend. Gael. Pr.
A blue-stocking despises her duties as a woman, and always begins by making herself a man. Rousseau.
Abnormis sapiens—Wise without learning. Hor.
A bon chat bon rat—A good rat to match a good 45 cat. Tit for tat. Pr.
A bon chien il ne vient jamais un bon os—A good bone never falls to a good dog. Fr. Pr.
A bon droit—Justly; according to reason. Fr.
A bon marché—Cheap. Fr.