The great mass of human beings are not acutely selfish. After the age of about thirty they abandon individual ambition - in many cases, indeed, they almost abandon the sense of being individuals at all - and live chiefly for others, or are simply smothered under drudgery. But there is also the minority of gifted, wilful [sic] people who are determined to live their own lives to the end.
The first line seems almost silly to me, until I realize that I fully place myself (rightly or wrongly) among the gifted minority. Upon further reflection, I can conclude that I am not sure whether or not this is true, but I would place the probability it is true above 50%.