When the going gets tough, there are these 40 Bruce Lee quotes to keep you going.A famed martial artist, action-film actor, and seemingly immortal cultural icon, Bruce Lee is remembered as much for his words of wisdom as he is for his lightning fast kicks. Today, we look at some of the most introspective and inspirational Bruce Lee quotes: Mistakes are always forgivable, if one has the courage to admit them.

Local legend has it that the last three rulers of the Incan Empire lay buried at the site. Shaped like a cross, the one-hectare complex has a rich and mysterious history.Klebher Vasquez/Anadolu Agency/Getty ImagesThe remains showed signs of syphilis and bore skull deformities. The Hospital Real de San Andrés in Lima, Peru, has long captivated historians. Built exclusively for Spanish patients in 1552, legend holds that it served as a tomb for the last three rulers of the Incan Empire.

Revolutionaries loyal to Emiliano Zapata arrive on a train. Cuernavaca. 1911. DeGolyer Library, Southern Methodist University Revolutionaries fight from the blasted remains of City Hall. Juarez. Circa 1910-1917. DeGolyer Library, Southern Methodist University A soldier lies wounded. Juarez. Circa 1910-1915. Library of Congress Two lynched bodies hang from a tree. Circa 1910-1917. DeGolyer Library, Southern Methodist University A man accused of stealing weapons from military is gunned down in a public execution.

These six legendary Soviet and Russian snipers not only aided the Soviet's army but also changed the way militaries utilized long distance attacks. Sovfoto/Contributor/Getty Images In the 1930s, when other countries were cutting sniper teams, the Soviet Union began training some of the most talented snipers of not only the World War II era, but of history. These sharpshooters, able to the snuff out high-ranking, difficult-to-replace officers on the opposing side, were able to wreak havoc on their enemy’s chain of command and morale and quickly became some of the most important soldiers to fight in the war.

In a world full of true crime dramas, it can be hard to separate fact from fiction.Wikimedia CommonsCrime scenes rarely unfold like they do on TV, but that doesn’t mean they’re not interesting. In a world full of true crime dramas it can be hard to separate fact from fiction. On television, everything moves fast, but what really happens inside a crime scene? How is cause of death actually determined?