In organic chemistry there exist certain types which are conserved even when, in place of hydrogen, equal volumes of chlorine, of bromine, etc. are i…

- Jean-Baptiste Dumas

In chemistry, our theories are crutches; to show that they are valid, they must be used to walk... A theory established with the help of twenty facts…

- Jean-Baptiste Dumas

In inorganic chemistry the radicals are simple; in organic chemistry they are compounds—that is the sole difference.

- Jean-Baptiste Dumas

I have seen many phases of life; I have moved in imperial circles, I have been a Minister of State; but if I had to live my life again, I would alway…

- Jean-Baptiste Dumas

The chemical compounds are comparable to a system of planets in that the atoms are held together by chemical affinity. They may be more or less numer…

- Jean-Baptiste Dumas