"Toom ruse" means empty praise, and the proverb signifies that we should not praise indiscriminately, or without knowledge of the subject.
Mak the best o' a bad bargain.
Mak your wife a gowdspink, and she'll turn a water-wagtail.
That is, if you indulge a person freely to a certain extent, the probability is he will exceed the limits.
Malice is aye mindfu'.
Man proposes, God disposes.
Man's twal is no sae gude as the deil's dizzen.
No, because "man's twal" is twelve, while the "deil's dizzen" is thirteen.
March comes like a lion and gangs like a lamb.
March comes wi' adders' heads and gangs wi' peacocks' tails.