Too much is always bad; old proverbs call / Even too much honey nothing else than gall. Anon.

Too much mercy is want of mercy. Tennyson. 40

Too much of a good thing. As You Like It, iv. 1.

Too much of one thing is good for nothing. Thales and Solon.

Too much painstaking speaks disease in one's mind, as much as too little. Carlyle.

Too much rest is rust. Scott.

Too much rest itself becomes a pain. Homer. 45

Too much sensibility creates unhappiness; too much insensibility creates crime. Talleyrand.

Too much wit / Makes the world rotten. Tennyson.

Too surely, every setting day, / Some lost delight we mourn. Keble.