1. “All great things of humanity have been accomplished in the name of absolute principles.”
2. “Let us remember that sorrow alone is the creator of great things.”
3. “The simplest schoolboy is now familiar with truths for which Archimedes would have sacrificed his life.”
4. “Woe to him who becomes useless to human progress!”
5. “Man makes holy what he believes.”
6. “Religion is not a popular error; it is a great instinctive truth, sensed by the people, expressed by the people.”
7. “History is as much as an art as a science.”
8. “No idea can succeed except at the expense of sacrifice; no one ever escapes without enduring strain from the struggle of life.”
9. “Fanatics fear liberty more than they fear persecution.”
10. “The great men of a nation are those it puts to death.”
11. “Our opinions become fixed at the point where we stop thinking.”
12. “When people complain of life, it is almost because they have asked impossible things of it.”
13. “It is good for everyone to know how to forget.”
14. “The liberty of the individual is a necessary postulate of human progress.”
15. “Blessed are the blind, for they know not enough to ask why.”