Learn, compare, collect the facts!

It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients.

Don't become a mere recorder of facts, but try to penetrate the mystery of their origin.

Gradualness, gradualness, and gradualness. From the very beginning of your work, school yourself to severe gradualness in the accumulation of knowledge.

Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise.

Learn the ABC of science before you try to ascend to its summit.

Men are apt to be much more influenced by words than by the actual facts of the surrounding reality