There is no more important rule of conduct in the world than this: attach yourself as much as you can to people who are abler than you and yet not so very different that you cannot understand them. – G. C. (Georg Christoph) Lichtenberg
There are two great rules of life, the one general and the other particular. The first is that everyone can, in the end get what he wants if he only tries. This is the general rule. The particular rule is that every individual is more or less an exception to the general rule. – Samuel Butler