ALCESTE: Finding on every hand base flattery,
Injustice, fraud, self-interest, treachery …
Ah, it’s too much; mankind has grown so base,
I mean to break with the whole human race.

[Je ne trouve partout que lâche flatterie,
Qu’injustice, intérêt, trahison, fourberie;
Je n’y puis plus tenir, j’enrage, et mon dessein
Est de rompre en visière à tout le genre humain.]

Molière (1622-1673) French playwright, actor [stage name for Jean-Baptiste Poquelin]

Le Misanthrope, Act 1, sc. 1 (1666) [tr. Wilbur (1954)]
    (Source)

(Source (French)). Alternate translations:

Everywhere I find nothing but base flattery, in justice, self-interest, deceit, roguery. I cannot bear it any longer; I am furious; and my intention is to break with all mankind.
[tr. Van Laun (1878)]

I find nothing anywhere but base flattery, injustice, interest, treachery, and knavery. I can contain myself no longer; I am. in a rage, and my purpose is to break off all intercourse with all mankind.
[tr. Mathew (1890)]

Everywhere I find base flattery, injustice, self-interest, treachery, deceit. I cannot bear it any longer; I am enraged; and my intention is to tell the truth, henceforth, to all the human race.
[tr. Wormeley (1894)]

Nothing is to be seen anywhere but base flattery, injustice, self-interest, deceit, roguery. I cannot bear it any longer: I am furious: and it is my intention to break a lance with all mankind.
[tr. Waller (1903)]

There's nowhere aught but dastard flattery,
Injustice, treachery, selfishness, deceit;
I can't endure it, I go mad -- and mean
Squarely to break with all the human race.
[tr. Page (1913)]

All I see everywhere is flattery,
Injustice, treason, selfishness, deceit.
It makes me furious; I cannot stand it;
I will defy the entire human race.
[tr. Bishop (1957)]

Cowardly flattery is all I see,
Injustice, selfishness, fraud, treachery;
I've had my fill; it makes me mad; I plan
To clash head-on with the whole race of man.
[tr. Frame (1967)]