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"A good story is one that stays with you long after you've finished reading it."
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.
The value and utility of any experiment are determined by the fitness of the material to the purpose for which it is used.
If you surrendered to the air, you could ride it.
Innovation is not just about new ideas, but about executing them with precision and passion.