1.No one knows everything, and
you don’t have to. 2.Go for
messes. 3.It is to forgive yourself for
wasting time. As you will never be sure which
are the right problems to work on, most of the time that you spend in the
laboratory or at your desk will be wasted. If you want to be creative, then you
will have to get used to spending most of your time not being creative, to being
becalmed on the ocean of scientific knowledge. 4.Learn something about the
history of science.