Square and Compasses (Symbol Of Freemasonry)

The Square and Compasses is the single most identifiable symbol of Freemasonry. Both the square and compasses are architect's tools, and are used in Masonic ritual as emblems to teach symbolic lessons.
Some Lodges and rituals explain these symbols as lessons in conduct: for example, that Masons should "square their actions by the square of virtue" and learn to "circumscribe their desires and keep their passions within due bounds toward all mankind". However, as Freemasonry is non-dogmatic, there is no general interpretation for these symbols that is used by Freemasonry as a whole.
Thus some take the Letter 'G' to represent Goodness, the essential goodness of Freemasonry and of humankind. Others argue that the letter 'G' stands for Geometry the basis of the operative craft that gave birth to modern Freemasonry.

Eye of Providence

The Eye of Providence, also known as all-seeing eye, is a symbol showing an eye often surrounded by rays of light or a glory and usually enclosed by a triangle. It is sometimes interpreted as representing the eye of God watching over humankind.

In the modern era, the most notable depiction of the eye is the reverse of the Great Seal of the United States, which appears on that nation's One Dollar bill.

The Pyramid and the All-Seeing Eye on the American dollar bill are the ultimate “conspiracy theory” symbol. And there’s a good reason for that. They reveal at the same time who the conspirators are, where they’re from and where they want to go. The fact that the Great Seal is an occult and Masonic is a fact, proven by the writings of the Founding Fathers themselves and masonic documentation.