Homer.

"And with these I associated, having come from Pylos,
From far away, from a distant land; for they called me.
And I fought on my own; but none of those
Who are now mortals on the earth would fight against them.
And they heeded my counsel, and obeyed my words.
But you too must obey, since it is better to obey.
Do not you, Agamemnon, although you are a great man, take away his prize,
But leave it, as the sons of the Achaeans first gave it to him as his portion.
And do not you, son of Peleus, wish to contend against a king
In opposition; since never did a scepter-bearing king share in equal honor,
To whom Zeus has given glory.
If you are stronger, and a goddess mother gave you birth,
Yet he is greater, since he rules over more people.
Son of Atreus, do you cease your rage; and I
Beg you to let go your anger against Achilles, who for all the Achaeans
Acts as a great bulwark against the evil of war."

Agamemnon and Achilles quarrel for the third time.

The lord Agamemnon answered him and said:
"Yes, all these things you have said, old man, according to right.
But this man wishes to be above all others,
He wishes to rule over all, and to command all,
And to give orders to all, which I do not think will be obeyed.
If the gods who always live made him a spearman,
Does that give him the right to speak insults to me?"

Then god-like Achilles interrupted him and answered:
"For I would be called a coward and a base man,"