The strange thing about growing old is that the intimate identification with the here and now is slowly lost; one feels transposed into infinity, more or less alone.
infinityquotes
To the philosopher, infinity, knowledge, movement, empirical laws, etc., are things just as familiar {as family relations}. And as her dead brother and uncle are present to the peasant woman, thus Plato, Spinoza, etc. are present to the philosopher. The one has as much reality as the other, but the latter are immortal.
empirical / infinity / knowledge / movement / philosopher