I wasted time, and now doth time waste me (Richard II, V.2)

From Bowyer Nichol's Words and Days (1895): the entry for January 25th.

O gentlemen, the time of life is short;
To spend that shortness basely were too long.
I KING HENRY IV. V. 2.


It has been well believed through many ages that the beginning of compunction is the beginning of a new life; that the mind which sees itself blameless may be called dead in trespasses— in trespasses on the love of others, in trespasses on their weakness, in trespasses on all those great claims which are the image of our own need. 

GEORGE ELIOT.


Get up, get up, thou leaden man!
Thy track, to endless joy or pain,
Yields but the model of a span:
Yet burns out thy life's lamp in vain!
One minute bounds thy bane or bliss.
Then watch and labour while time is!
CAMPION.