Did you know that Newton's version was written to a dwarf (Robert Hooke) who had accused Newton of taking his ideas?

It is ironic that this pointed insult has become seen as a sign of his intellectual generosity.

Interesting. That prompted me to look at the online references

http://en.wikipedia.org/wiki/Robert_Hooke

http://en.wikipedia.org/wiki/Isaac_Newton#Fame

and learn about the personality disputes among scientists of that era.