pursue philosophy, not as they do now, but in a different spirit.

In what manner?

At present, I said, the students of philosophy are quite young; beginning when they are hardly past childhood, they devote only the time saved from moneymaking and housekeeping to such pursuits; and even those of them who are reputed to have most of the philosophic spirit, when they come within sight of the great difficulty of the subject, I mean dialectic, take themselves off. In after life when invited by some one else, they may, perhaps, go and hear a lecture, and about this they make much ado, for philosophy is not considered by them to be their proper business: at last, when they grow old, in most cases they are extinguished more truly than Heracleitus’ sun, inasmuch as they never light up again.