Famous Sayings

Question 1: Which brilliant American inventor is credited with the oft-cited quote "Genius is one percent inspiration and ninety-nine percent perspiration"? <br />Question 2: The famous saying "The pen is mightier than the sword" promoting the power of communication over violence originated from which acclaimed English playwright and novelist?  <br />Question 3: What is the second part of the profound philosophical statement by René Descartes that begins "I think, therefore..."? <br />Question 4: According to Shakespearean lore, which Roman leader's final words upon being betrayed were "Et tu, Brute?"  <br />Question 5: Complete this immortal opening line from the renowned "To be, or not to be"...