Good paymasters need no surety. [ Proverb ]

He that will be surety shall pay. [ English Proverb, collected by George Herbert ]

One honor won is a surety for more. [ La Rochefoucauld ]

And he that makes his soul his surety,
I think, does give the best security. [ Butler ]

Abstinence is the surety of temperance. [ Plato ]

What surety of the world, what hope, what stay.
When this was now a king, and now is clay! [ William Shakespeare ]

Perfect friendship puts us under the necessity of being virtuous; as it can only be preserved among esteemable persons, it forces us to resemble them; you find in friendship the surety of good counsel, the emulation of good example, sympathy in our griefs, and succor in our distress. [ Mme. de Lambert ]

The man who will share his purse with you in the days of misfortune and distress, and like the good Samaritan, be surety for your support to the landlord, you may admit to your confidence, incorporate into the very core of your heart, and call him friend; misfortunes cannot shake him from you; a prison will not conceal you from his sight. [ J. Bartlett ]