A catalyst is a substance which alters the velocity of a chemical reaction without appearing in the final products.
Happiness is equal to work minus resistance.
What we call matter is only a complex of energies which we find together in the same place.
I must consider the organizer as more important than the discoverer.
Non-aqueous solutions don't conduct.
The only difference between elements and compounds consists in the supposed impossibility of proving the so-called elements to be compounds.