Noun
the science of matter and energy and their interactions
Source: WordNetWe should remember that there was once a discipline called natural philosophy. Unfortunately, this discipline seems not to exist today. It has been renamed science, but science of today is in danger of losing much of the natural philosophy aspect. Hannes Alfvén
There is no more open door by which you can enter into the study of natural philosophy than by considering the physical phenomena of a candle. Michael Faraday
Our imagination is struck only by what is great; but the lover of natural philosophy should reflect equally on little things. Alexander von Humboldt
Thanks to the high standing which science has for so long attain and to the impartiality of the Nobel Prize Committee, the Nobel Prize for Physics is rightly considered everywhere as the highest reward within the reach of workers in Natural Philosophy. Guglielmo Marconi
I have always looked upon alchemy in natural philosophy to be like enthusiasm in divinity, and to have troubled the world much to the same purpose. William Temple
A true philosopher does not engage in vain disputes about the nature of motion; rather, he wishes to know the laws by which it is distributed, conserved or destroyed, knowing that such laws is the basis for all natural philosophy. Pierre Louis Maupertuis