Dmitri Mendeleev — "The periodic law is one of the most important generalizations in chemistry."
The periodic law is one of the most important generalizations in chemistry.
The periodic law is one of the most important generalizations in chemistry.
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"Knowing how contented, free and joyful is life in the realms of science, one fervently wishes that many would enter their portals."
"Without knowledge, without work, there is no hope for humanity."
"Knowledge is a holy thing, and it is a sacred duty to transmit it to others."
"No one nor anything can silence me."
"The elements which are the most widely diffused have small atomic weights."
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