"Physics and chemistry--you can't do them without laboratory study; and you'll find algebra and geometry almost hopeless with instruction.

You need the skilled teachers, the specialists in the art of imparting knowledge." He was silent for a minute, casting about for the least vainglorious way in which to express himself.
"Please don't think I'm bragging," he began.

"I don't intend it that way at all.

But I have a feeling that I am what I may call a natural student.

I can study by myself.