'Tis a great foolery to teach our children:

"Quid moveant Pisces, animosaque signa Leonis,
Lotus et Hesperia quid Capricornus aqua,"

["What influence Pisces have, or the sign of angry Leo, or
Capricorn, washed by the Hesperian wave."--Propertius, iv. I, 89.]

the knowledge of the stars and the motion of the eighth sphere before
their own:

["What care I about the Pleiades or the stars of Taurus?"
--Anacreon, Ode, xvii. 10.]

Anaximenes writing to Pythagoras, "To what purpose," said he, "should I
trouble myself in searching out the secrets of the stars, having death or
slavery continually before my eyes?" for the kings of Persia were at that
time preparing to invade his country. Every one ought to say thus,
"Being assaulted, as I am by ambition, avarice, temerity, superstition,
and having within so many other enemies of life, shall I go ponder over
the world's changes?"

After having taught him what will make him more wise and good, you may
then entertain him with the elements of logic, physics, geometry,
rhetoric, and the science which he shall then himself most incline to,
his judgment being beforehand formed and fit to choose, he will quickly
make his own. The way of instructing him ought to be sometimes by
discourse, and sometimes by reading; sometimes his governor shall put the
author himself, which he shall think most proper for him, into his hands,