Their Gray Thoughts, Their Strange Thoughts

 "I Know the Stars"
by Sara Teasdale 

I know the stars by their names,
 Aldebaran, Altair,
 And I know the path they take
 Up heaven's broad blue stair. 

 I know the secrets of men
 By the look of their eyes,
 Their gray thoughts, their strange thoughts
 Have made me sad and wise. 

 But your eyes are dark to me
 Though they seem to call and call
 I cannot tell if you love me
 Or do not love me at all.

I know many things,
 But the years come and go.
 I shall die not knowing
 The thing I long to know.