From my layman-level understanding, Origen wrote this in response to Celsus arguing that Plato said some of the same things Christ said but in a more intelligent form, to which Origen has this in part as a response which, considering the success of Christianity in getting sometimes the same truth to the masses, would have probably impressed Plato some.

Here is Origen’s cool response:

And further, we are not to imagine that a truth adorned with the graces of Grecian speech is necessarily better than the same when expressed in the more humble and unpretending language used by Jews and Christians, although indeed the language of the Jews, in which the prophets wrote the books which have come down to us, has a grace of expression peculiar to the genius of the Hebrew tongue. And even if we were required to show that the same doctrines have been better expressed among the Jewish prophets or in Christian writings, however paradoxical it may seem, WE ARE PREPARED TO PROVE THIS BY AN ILLUSTRATION taken from different kinds of food, and from the different modes of preparing them. Suppose that a kind of food which is wholesome and nutritious has been prepared and seasoned in such a way as to be fit, not for the simple tastes of peasants and poor labourers, but for those only who are rich and dainty in their tastes. Suppose, again, that that same food is prepared not to suit the tastes of the more delicate, but for the peasants, the poor labourers, and the common people generally, in short, so that myriads of persons might eat of it. Now if, according to the supposition, the food prepared in the one way promotes the health of those only who are styled the better classes, while none of the others could taste it, whereas when prepared in the other way it promoted the health of great multitudes of men, which shall we esteem as most contributing to the public welfare,—those who prepare food for persons of mark, or those who prepare it for the multitudes?—taking for granted that in both cases the food is equally wholesome and nourishing; while it is evident that the welfare of mankind and the common good are promoted better by that physician who attends to the health of the many, than by one who confines his attention to a few.

Origen. 1885. “Origen against Celsus.” In Fathers of the Third Century: Tertullian, Part Fourth; Minucius Felix; Commodian; Origen, Parts First and Second, edited by Alexander Roberts, James Donaldson, and A. Cleveland Coxe, translated by Frederick Crombie, 4:634–35. The Ante-Nicene Fathers. Buffalo, NY: Christian Literature Company.

“Come unto me, all ye that labour and are heavy laden, and I will give you rest. Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls. For my yoke is easy, and my burden is light.” – Matthew 11:28-30