Here I collect interesting and original quotes which I encountered in events or publications, referencing to the source.

Christoph Walz about the nature of Austrians (on Youtube in Clip from 1:45): 
"Austrians tend to make their lives easier. So first of all they are very polite, and second, they don't mean it."

Napoleon I., French emperor:
"There are thieves that go unpunished by law and still steal the most valuable thing from poeple: time"

Johann Wolfgang von Goethe (1749-1832), German poet:
"Such a job is never complete, one has to declare it completed once one has done everything possible based on time and circumstances."

Daniel Davis as Professor Moriarty in Star Trek the Next Generation Season 6, Episode 12:
"A deadline has a wonderful way of concentrating the mind"