One person, however insignificant they think they are to you, means so much more than they think. Like someone who became your lab partner for a semester or someone who gave you five cents at the coffee shop because you didn'thave enough change for a latte. Someone like that could easily leave a biggerimpact without realizing it themselves. And they'll go on the rest of their lives not knowing how much they mean to you. Perhaps they've even changed you, but they'll never know. There are people like that in my life, almost-strangers who I'll never forget.
They probably don't even remember me, though I wouldn't blame them for that.

 I, on the other hand, will always remember them.