B.f. Skinner said this quote

A scientist may not be sure of the answer, but he's often sure he can find one. And that's a condition which is clearly not enjoyed by philosophy.

~ B.f. Skinner

A fourth-grade reader may be a sixth-grade mathematician. The grade is an administrative device which does violence to the nature of the developmental process.

~ B.f. Skinner

Education is what survives when what has been learnt has been forgotten.

~ B.f. Skinner

Why did colleges make their students take examinations, and why did they give grade? What did a grade really mean? When a student studied did he do anything more than read and think-- or was there something special which no one in Walden Two would know about? Why did the professors lecture to the students? Were the students never expected to do anything except answer questions? Was it true that students were made to read books they were not interested in?

~ B.f. Skinner