Although the universe is under no obligation to make sense, students in pursuit of a Ph. D. are.

- Robert Kirshner

Science is not a vast encyclopedia, it is a thin flame of reason burning across ample reservoirs of ignorance.

- Robert Kirshner

Understanding the history of matter and searching for its most interesting forms, such as galaxies, stars, planets and life, seems a suitable use for…

- Robert Kirshner