The Republic by Plato
The Republic by Plato Just the opposite. In childhood and youth their study, and what philosophy they learn, should be suited to their tender years: during this period while they are growing up towards manhood, the chief and special care should be given to their bodies that they may have them to use in the service of philosophy; as life advances and the intellect begins to mature, let them increase the gymnastics of the soul; but when the strength of our citizens fails and is past civil and military duties, then let them range at will and engage in no serious labour, as we intend them to live happily here, and to crown this life with a similar happiness in another.
How truly in earnest you are, Socrates! he said; I am sure of that; and yet most of your hearers, if I am not mistaken, are likely to be still more earnest in their opposition to you, and will never be convinced; Thrasymachus least of all.
Do not make a quarrel, I said, between Thrasymachus and me, who have recently become friends, although, indeed, we were never enemies; for I shall go on striving to the utmost until I either convert him and other men, or do something which may profit them against the day when they live again, and hold the like discourse in another state of existence.
You are speaking of a time which is not very near.