All good things must come to an end.
And gladly would he learn, and gladly teach
Habit maketh no monk, ne wearing of gilt spurs maketh no knight.
Hyt is not al golde that glareth.
People can die of mere imagination.
Lat take a cat, and fostre him wel with milk, And tendre flesh, and make his couche of silk, And let him seen a mous go by the wal; Anon he weyveth milk, and flesh, and al, And every deyntee that is in that hous, Swich appetyt hath he to ete a mous.