The weak in courage is strong in cunning.
William Blake (1757-1827) British poet and painter.
With foxes we must play the fox.
Thomas Fuller (1608-1661) British clergyman and author.
The fly that does not want to be swatted is safest if it sits on the fly-swat.
Georg C. Lichtenberg (1742-1799) German scientist, satirist and anglophile.
The greatest cunning is to have none at all.
Carl Sandburg (1878-1967) American poet.