The principle goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done.
When you teach a child something you take away forever his chance of discovering it for himself.
Play is the answer to how anything new comes about.
It is with children that we have the best chance of studying the development of logical knowledge, mathematical knowledge, physical knowledge, and so forth.
Scientific knowledge is in perpetual evolution; it finds itself changed from one day to the next.