Mrs. Sibley + 

The secret of the stars⁠—gravitation. + 

The secret of the earth⁠—layers of rock. + 

The secret of the soil⁠—to receive seed. + 

The secret of the seed⁠—the germ. + 

The secret of man⁠—the sower. + 

The secret of woman⁠—the soil. + 

My secret: Under a mound that you shall never find. + 