涵养须用敬，进学则在致知。
修养心性需要持敬，增进学问则在于获取知识。
我在恋爱中吗？是的，因为我在等人。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
Every child should have mud pies, grasshoppers, water bugs, tadpoles, frogs, mud turtles, elderberries, wild strawberries, acorns, chestnuts, trees to climb, brooks to wade in, water lilies, woodchucks, bats, bees, butterflies, various animals to pet, hayfields, pine-cones, rocks to roll, sand, snakes, huckleberries and hornets; and any child who has been deprived of these has been deprived of the best part of education.