Now, now, my sister, the Fates are in command.
Don’t hold me back. Where God and relentless
Fortune call us on, that’s the way we go!

[Iam iam fata, soror, superant; absiste morari;
quo deus et quo dura vocat Fortuna, sequamur.]

Virgil (70-19 BC) Roman poet [b. Publius Vergilius Maro; also Vergil]

The Aeneid [Ænē̆is], Book 12, l. 676ff (12.676-677) [Turnus] (29-19 BC) [tr. Fagles (2006)]
    (Source)

Declaring to his sister that, despite her attempts to protect him, Fate dictates he face Aeneas in (likely fatal) battle.

(Source (Latin)). Alternate translations:

Fate calls now, sister, there is no delay:
What God and hard chance bids, we must obey.
[tr. Ogilby (1649)]

Sister, the Fates have vanquish'd: let us go
The way which Heav'n and my hard fortune show.
[tr. Dryden (1697)]

Sister, now, now, destiny prevails; forbear to stop me; let us follow whither god and rigid fortune calls.
[tr. Davidson/Buckley (1854)]

The Fates, the Fates must have their way:
O sister! cease to breed delay:
Where Heaven and cruel Fortune call,
There let me follow to my fall.
[tr. Conington (1866)]

Now, sister, now the fates prevail.
Bid me not pause. Wherever Heaven may lead
And Fortune stern, let us pursue our course.
[tr. Cranch (1872), l. 856ff]

Now, O my sister, now fate prevails: cease to hinder; let us follow where deity and stern fortune call.
[tr. Mackail (1885)]

Now, sister, now the Fates prevail! no more for tarrying try.
Nay, let us follow where the God, where hard Fate calleth me!
[tr. Morris (1900)]

"Sister," he cries, "Fate conquers; let us go
The way which Heaven and cruel fortune show."
[tr. Taylor (1907), st. 88, l. 787ff]

Fate is too strong, my sister! Seek no more
to stay the stroke. But let me hence pursue
that path where Heaven and cruel Fortune call.
[tr. Williams (1910)]

Now, my sister, now Fate triumphs: cease to hinder; where God and cruel Fortune call, let us follow!
[tr. Fairclough (1918)]

Fate is the winner now; keep out of my way,
My sister: now I follow god and fortune.
[tr. Humphries (1951)]

The fates are too strong for me, sister -- I see it now. Don't hold me back;
Let me go where God and my own unmerciful fortune call me.
[tr. Day-Lewis (1952)]

Sister, fate has won; do not
delay me; let us follow where both god
and cruel fortune call.
[tr. Mandelbaum (1971), l. 900ff]

Ah, sister, see, fate overpowers us.
No holding back now. We must follow where
The god calls, or implacable Fortune calls.
[tr. Fitzgerald (1981), l. 915ff]

"Sister," he said, "the time has come at last. The Fates are too strong. You must not delay them any longer. Let us go where God and cruel fortune call me."
[tr. West (1990)]

Now, sister, now fate triumphs: no more delays:
where god and cruel fortune calls, let me follow.
[tr. Kline (2002)]

Now, Sister, the Fates triumph at last.
Stop holding me back. We will follow
Where God and cruel Fortune call us.
[tr. Lombardo (2005)]

Sister, fate has won. Stop delaying me.
Let's go where Jove and heartless Fortune call.
[tr. Bartsch (2021)]