“We could cite dozens of classic examples of modest beginnings…Enthusiasm and perseverance work miracles. It is the exception when an inexperienced investigator succeeds in launching his career with a memorable scientific achievement from a luxurious and well-appointed laboratory maintained by the state. From the point of view of actual success, it is not the instruments [...]
“Finally, when we discover ourselves surrounded by a number of equally promising and fertile problems to work on, choose the one whose methodology we understand clearly, and the one we have a decided liking for. This is the good advice Darwin used to give his students when they asked for a problem to work on. [...]
“Like unmolded steel, our mind represents a potential sword. The forging and polishing of study transform it into the tempered and keen scalpel of science. Let us have a cutting edge on only one side, or on two at the most, if we want to conserve its analytical powers and penetrate to the heart of [...]