Yes, know thyself: in great concerns or small,
Be this thy care, for this, my friend, is all. [ Juvenal ]

Nothing that concerns man is indifferent to me. [ Motto ]

Figure-flingers and star-gazers pretend to foretell the fortunes of kingdoms, and have no foresight in what concerns themselves. [ L'Estrange ]

Those who place their affections at first on trifles for amusement, will find these trifles become at last their most serious concerns. [ Goldsmith ]

Certainly the highest and dearest concerns of a temporal life are infinitely less valuable than those of an eternal; and consequently ought, without any demur at all, to be sacrificed to them, whenever they come in competition. [ South ]

The want of interest renders a person negligent; servants are commonly negligent in what concerns their master's interest. Negligence is therefore the fault of persons of all descriptions, but particularly those in low condition. [ G. Crabb ]

Truth, in the great practical concerns of life, is so much a question of the reconciling and combining of opposites, that very few have minds sufficiently capacious and impartial to make the adjustment with an approach to correctness. [ J. S. Mill ]

He is a treacherous supplanter and underminer of the peace of all families and societies. This being a maxim of an unfailing truth, that nobody ever pries into another man's concerns but with a design to do, or to be able to do him a mischief. [ South ]

When the great Kepler had at length discovered the harmonic laws that regulate the motions of the heavenly bodies, he exclaimed: Whether my discoveries will be read by posterity or by my contemporaries is a matter that concerns them more than me. I may well be contented to wait one century for a reader, when God Himself, during so many thousand years, has waited for an observer like myself. [ Macaulay ]