Albert Einstein Quote

One must first know an event before one can test a theory related to this event.


In: Carola Baumgardt, Johannes Kepler: Life and Letters, Introduction (p. 10)


One must first know an event before one can test a theory related to this event.

One must first know an event before one can test a theory related to this event.

One must first know an event before one can test a theory related to this event.

One must first know an event before one can test a theory related to this event.