My teachings are easy to understand and easy to put into practice. Yet your intellect will never grasp them, and if you try to practice them, you'll fail. My teachings are older than the world. How can you grasp their meaning? If you want to know me, look inside your heart.
Education of youth is not a bow for every man to shoot in that counts himself a teacher; but will require sinews almost equal to those which Homer gave to Ulysses.
Adde, quod ingénues didicisse fideliter artes Emollit mores, nec sinit esse fervos. To be instructed in the arts, softens the manners and makes men gentle.
These teachings are like a raft, to be abandoned once you have crossed the flood. Since you should abandon even good states of mind generated by these teachings, How much more so should you abandon bad states of mind!
But since there is but one aim for the entire state, it follows that education must be one and the same for all, and that the responsibility for it must be a public one, not the private affair which it now is, each man looking after his own children and teaching them privately whatever private curriculum he thinks they ought to study.
The schoolmaster is the person who takes the children off the parents' hands for a consideration. That is to say, he establishes a child prison, engages a number of employee schoolmasters as turnkeys, and covers up the essential cruelty and unnaturalness of the situation by torturing the children if they do not learn, and calling this process, which is within the capacity of any fool or blackguard, by the sacred name of Teaching.
Teaching and writing have tended to proceed on parallel lines, but there have been times when there was indeed carry-over from the classroom to the creative work.
If you listen to the Dhamma teachings but don't practice you're like a ladle in a soup pot. The ladle is in the soup pot every day, but it doesn't know the taste of the soup. You must reflect and meditate.
Whatever you teach, be brief; what is quickly said, the mind readily receives and faithfully retains, everything superfluous runs over as from a full vessel.