Don't be "consistent," but be simply true. Holmes.
Don't budge, if you are at ease where you are. Ger. Pr.
Don't despise a slight wound or a poor relative. 40 Dan. Pr.
Don't dissipate your powers; strive constantly to concentrate them. Genius thinks it can do whatever it sees others doing, but it is sure to repent of every ill-judged outlay. Goethe.
Don terrible de la familiarité—The terrible gift of familiarity. Mirabeau.
Don't fly till your wings are fledged. Ger. Pr.
Don't hate; only pity and avoid those that follow lies. Carlyle.
Don't put too fine a point to your wit, for fear 45 it should get blunted. Cervantes.
Don't quit the highway for a short cut. Port. Pr.
Don't reckon your chickens before they are hatched. Pr.