- In this effort, I believe I was quite successful. Since I aimed to uncover the falsehood or uncertainty of the propositions I examined using clear and definite reasoning, I found that nothing was so doubtful that it didn’t lead to some conclusion with sufficient certainty, even if that conclusion was simply that the matter had no certainty at all.
- Iron (Wikipedia)
Iron is a chemical element; it has the symbol Fe (from Latin ferrum ‘iron’) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, forming much of Earth’s outer and inner core. It is the fourth most abundant element in the Earth’s crust, being mainly deposited by meteorites in its metallic state.