If learning is a three dimensional thing,
then exams are two dimensional. Any beautiful things will be projected into ugly figures.

If studying is a two dimensional thing,
then midterms shall be one dimensional. Happiness will be projected into sadness.

If curiosity is an one dimensional thing,
then quizzes must be a dot, the one that breaks my heart. Knowledge will be projected into nonsense.

As a whole, practice makes perfect, and quizzes are useless.