Nature does not allow herself to be forced or drawn. You must 
follow her, not she you. — Paracelsus. 
Homo, Naturae minister et interpres, tantum facit et intelligit 
quantum de Naturae ordine re vel mente conservayerit; nec amplius 
scit aut potest. — Bacon. 
The power of man over Nature is limited only by the one condition, 
that it must be exercised in conformity with the laws of Nature.— 
Herschel. 
