Esters as Natural Perfumes

The English translation of Titus Lucretius Caros, Poem De Rerum Natura (The ay Things Are) is as follows  

Now then I have shown that things can never be created From nothing, and that no created thing Can ever be called back to nothingness. 

You may, perhaps, begin to doubt my lessons Since atoms are too small to see, but listen. 

You must admit that there are other bodies Existing but invisible. 

Wi sense them, but we never see them coming Toward our nostrils we do not look at heat. 

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