Breakthrough

Looking back at my life/trail, what breakthrough contributions have I made to society? Is being a leader in my company or in my religious or adequate? The web defines breakthrough as follows. So the question is - have I contributed a breakthrough act/event?

Breakthrough. 1. an offensive thrust that penetrates and carries beyond a defensive line in warfare.2. an act or instance of breaking through an obstacle breakthrough agreement. 3. a sudden advance especially in knowledge or techniquebreakthrough. 4. a person's first notable success.

I remember the poem:

I am only one, but still I am one.

I cannot do everything, but still I can do something;

and because I cannot do everything,

I will not refuse to do something that I can do.