Demosthenes, On the Crown
97 (tr. Harvey Yunis):
Indeed, since all men find the
limit of life in death—even one who has shut himself in a closet and
watches—good men must always venture all noble acts with good
hope as their shield and worthily endure whatever god gives them.
πέρας μὲν γὰρ ἅπασιν ἀνθρώποις ἐστὶ τοῦ βίου θάνατος, κἂν ἐν οἰκίσκῳ τις αὑτὸν καθείρξας τηρῇ· δεῖ δὲ τοὺς ἀγαθοὺς ἄνδρας ἐγχειρεῖν μὲν ἅπασιν ἀεὶ τοῖς καλοῖς, τὴν ἀγαθὴν προβαλλομένους ἐλπίδα, φέρειν δ᾿ ὅ τι ἂν ὁ θεὸς διδῷ γενναίως.
William Watson Goodwin ad loc.:
The meaning is not
the flat truism, "death is the end of
all men's lives," but all men's lives
have a fixed limit in death, and this
is made a ground for devoting our
lives to noble ends, for which it is
worthy to die.