Spendius - so much for Alexander the Great, then!
In the interest of full disclosure I lifted this link from another forum, but know Lola and George (nice to see you both btw) will love it:
____________________________________________________________
A problem is grand in science if it lies before us unsolved and we see some way for us to make a little headway into it. I would advise you to take even simpler, or as you say, humbler, problems until you find some you can really solve easily, no matter how trivial. You will get the pleasure of success, and of helping your fellow man, even if it is only to answer a question in the mind of a colleague less able than you. You must not take away from yourself these pleasures because you have some erroneous idea of what is worthwhile. No problem is too small or too trivial if we can really do something about it. You say you are a nameless man. You are not to your wife and to your child. You will not long remain so to your immediate colleagues if you can answer their simple questions when they come into your office.
You are not nameless to me. Do not remain nameless to yourself ?- it is too sad a way to be. Know your place in the world and evaluate yourself fairly, not in terms of the naive ideals of your own youth, nor in terms of what you erroneously imagine your teacher's ideals are.
http://www.guardian.co.uk/life/feature/story/0,13026,1481368,00.html
___________________________________________________________
[above is excerpt from letters by Richard Feynman published today for the first time]