I think this means:
If it's possible for a human being to do something, don't just say that he can't, just let him try, give him a chance.
Answer:
commence, the start, the dawn of, the rise of.
Explanation:
Answer:
Ancient European explorers would not have went far without the Chinese.
Explanation:
You have to remove the comma because it results in an unnecessary pause.
Look at this flea, and you'll understand that what you're denying me is very trivial. The flea sucked my blood first and then it sucked your blood. Now our bloods are mingled in the flea's blood. This mixing of bloods is not a sin or anything to be ashamed of. The flea now grows big with a new life inside it. The little bloodsucking flea has achieved much more than what we as lovers have attained.