For with the truth, all the given facts harmonize; but with what is false, the truth soon hits a wrong note.

[τῷ μὲν γὰρ ἀληθεῖ πάντα συνᾴδει τὰ ὑπάρχοντα, τῷ δὲ ψευδεῖ ταχὺ διαφωνεῖ τἀληθές.]

Aristotle (384-322 BC) Greek philosopher

Nicomachean Ethics [Ἠθικὰ Νικομάχεια], Book 1, ch. 8 (1.8, 1098b.11) (c. 325 BC) [tr. Bartlett/Collins (2011)]
    (Source)

(Source (Greek)). Alternate translations:

With what is true all things which really are are in harmony, but with that which is false the true very soon jars.
[tr. Chase (1847), ch. 6]

For with a true theory all facts agree, while with what is false truth is quickly found to conflict.
[tr. Williams (1869)]

For while all, experience harmonizes with the truth, it is never long before truth clashes with falsehood.
[tr. Welldon (1892)]

For all experience harmonizes with a true principle, but a false one is soon found to be incompatible with the facts.
[tr. Peters (1893)]

For with a true view all the data harmonize, but with a false one the facts soon clash.
[tr. Ross (1908)]

For if a proposition be true, all the facts harmonize with it, but if it is false, it is quickly seen to be discordant with them.
[tr. Rackham (1934)]

For all the data are in tune with a true view, whereas they soon clash with a false one.
[tr. Reeve (1948)]

For all things which belong to it are in harmony with a true [definition of it], but truth is soon bound to clash with a false [definition of it].
[tr. Apostle (1975)]

Because if a statement is true all the data are in harmony with it, while if it is false they soon reveal a discrepancy.
[tr. Thomson/Tredennick (1976)]

For all the data harmonize with the truth, but soon clash with falsity.
[tr. Crisp (2000)]