I noticed a mistake in one:
It's actually Kleppner & Kolenkow 
Memories... I used that book for freshman physics.
It is not that polar co-ordinates are complicated, it is simply
that cartesian co-ordinates are simpler than they have a right to be.
-- Kleppner & Kolenhow, "An Introduction to Mechanics"
that cartesian co-ordinates are simpler than they have a right to be.
-- Kleppner & Kolenhow, "An Introduction to Mechanics"

Memories... I used that book for freshman physics.
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