Dmitri Mendeleev — "I have achieved neither fame nor wealth, but I have learned to know the human he…"

"There will be new elements discovered, and they will fit into the empty spaces in my table."

"The whole essence of science is to make predictions."

"It was clear that in the United States there was a development not of the best, but of the middle and worst sides of European civilization; the notorious general voting, the tendency to politics... al…"

"It is easier to make a scientific discovery than to explain it to the common man."

"If statements of fact themselves depend upon the person who observes them, how much more distinct is the reflection of the personality of him who gives an account of methods and of philosophical specu…"