If we are to control our own future, it will be necessary, not only to obtain the cooperation of people, but to prepare comprehensive plans for that future.

But this same process of the old teaching the young can also cause errors and false conclusions to accumulate with the passage of time. One should therefore study ancient writings, not so much in the hope of finding lost wisdom as in the hope of locating the origin of errors that have been, and still are, accepted truths.

Each community has a curious and distorted image of itself which is always flattering.

Most of us are unaware of our deep-seated faith in numbers.

A good plan will therefore include alternative actions, the choice between them being left open until the passage of time indicates which is feasible and which is not.

If we are to control our own future, it will be necessary, not only to obtain the cooperation of people, but to prepare comprehensive plans for that future.

In order to arrive to a more realistic view of society, it must be recognized that there are individual differences that cannot be eradicated by the most rigid curriculum, and that various individuals will choose different educational curricula if allowed to do so.