The grace o' God is gear enough.
The grandsire buys, the faither bigs, the son sells, and the grandson thigs.
Alluding to the uncertainty of earthly things; meaning, literally, that the grandsire buys estates on which the father builds, the son sells the property, and forces the grandson again in turn to beg.
The gravest fish is an oyster; the gravest bird's an ool; the gravest beast's an ass; an' the gravest man's a fool.
The greatest burdens are no the maist gainfu'.
The greatest clerk's no aye the wisest man.
The greedy man and the cook are sure friends.
The greedy man and the gileynour are weel met.
The gude dog doesna aye get the best bane.
The gude man's mither is aye in the gait.