Dmitri Mendeleev

“Science is the captain, and practice the soldiers.”

“Grammar is the logic of speech, just as logic is the grammar of reason.”

“We could live at the present day without a Plato, but a double number of Newtons is required to discover the secrets of nature, and to bring life into harmony with the laws of nature.”

“I suppose when my unknown elements are found, more people will pay us attention.”

“The most important aspect of science is the correlation of the evidence.”

“I wish to establish a general system of the elements.”

“Work, look for peace and calm in work: you will find it nowhere else.”

“The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.”

“There is no harm in doubt and skepticism, for it is through these that new discoveries are made.”

“It is the function of science to discover the existence of a general reign of order in nature and to find the causes governing this order.”

“No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.”

“I want to be a discoverer of the secrets of nature. That's my main character trait.”

“Pleasures are fleeting, but work is permanent.”

“Let us learn to dream, gentlemen, then perhaps we shall find the truth... but let us beware of publishing our dreams before they have been put to the proof by the waking understanding.”