I saw in a dream a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper
Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered.
Take care of your tongue like the way you take care of Gold and Silver
To improve is to change, so to be perfect is to change often
Everyone sees what you appear to be, few experience what you really are
Nature makes penicillin; I just found it
Never was anything great achieved without danger
The progressive development of man is vitally dependent on invention
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