Good Olde Days?
I have endeavored to compel the student to think
and to reason for himself, and I have tried to emphasize the fact that he should not merely learn to understand and demonstrate a few set propositions, but that he should acquire the power of grasping and proving any simple geometrical truth that may be set before him: and this power, it must be remembered, can never be gained by memorizing demonstrations. Systematic practice in devising proofs of new propositions is indispensable.....
Preface to Chauvenetís Treatise on Elementary Geometry