Life would be too smooth if it had no rubs in it. Pr.
Life's a reckoning we cannot make twice over. George Eliot.
Life's a tragedy. Raleigh.
Life's a tumble-about thing of ups and downs. 45 Disraeli.
Life's but a day at most. Burns.
Life's but a means unto an end; that end / Beginning, mean, and end to all things—God. Bailey.
Life's but a walking shadow; a poor player, / That struts and frets his hour upon the stage, / And then is heard no more! It is a tale / Told by an idiot, full of sound and fury, / Signifying nothing. Macb., v. 5.
Life's ebbing stream on either side / Shows at each turn some mould'ring hope or joy, / The man seems following still the funeral of the boy. Keble.
Life's enchanted cup but sparkles near the brim. Byron.
Life's life ony gate (at any rate). Scott.