When you start in science, you are brainwashed into believing how careful you must be, and how difficult it is to discover things. There's something that might be called the 'graduate student syndrome'; graduate students hardly believe they can make a discovery.

A theory should not attempt to explain all the facts, because some of the facts are wrong

Evolution is cleverer than you are.

It has yet to be shown by direct biochemical methods, as opposed to the indirect genetic evidence mentioned earlier, that the code is indeed a triplet code.

For simplicity one can think of the + class as having one extra base at some point or other in the genetic message and the - class as having one too few.

Do codons overlap? In other words, as we read along the genetic message do we find a base which is a member of two or more codons? It now seems fairly certain that codons do not overlap.

Since I essentially knew nothing, I had an almost completely free choice.