As there are none so weak ...

As there are none so weak that we may venture to injure them with impunity, so there are none so low that they may not at some time be able to repay an obligation. Therefore, what benevolence would dictate, prudence would confirm.
As there are none so weak that we may venture to injure them with impunity, so there are none so low that they may not at some time be able to repay an obligation. Therefore, what benevolence would dictate, prudence would confirm.

Quotes from the same author

True friendship is like sound health; the value of it is seldom known until it is lost.
Man, if he compare himself with all that he can see, is at the zenith of power; but if he compare himself with all that he can conceive, he is at the nadir of weakness.
An Irish man fights before he reasons, a Scotchman reasons before he fights, an Englishman is not particular as to the order of precedence, but will do either to accommodate his customers.
In great cities men are more callous both to the happiness and the misery of others, than in the country; for they are constantly in the habit of seeing both extremes.
Men will wrangle for religion, write for it, fight for it, die for it; anything but live for it.