In many ways man is tiny, and to the degree that this is true, man should be aware of his infinitesimally small stature. But tiny men can also be great and sacred, just like the tiny little person who begins to learn Torah. Perhaps because the aleph is the first letter of the alphabet, and this is the primary concept a person should have. Indeed, we may be small in some ways, but we can be sacred and precious to G-d, and in this way we can all be great. He constantly views and evaluates each individual's deeds, and recompenses each one measure for measure.
Nothing is without reason. . . .
Actually, Hillel recognized the head. He knew that it belonged to a bandit who lived in the mountains who had murdered many others. He could thus confidently declare, 'Because you drowned others, you were also drowned. Nevertheless, there are cases where a person may be murdered without having had committed murder himself. There are other sins for which a person may deserve death.