If Allah has written for you happiness, no one can steal that from you, and if He has written for your heart to break, then no-one can mend it but He, so always put your trust in Allah.
Every kind of peaceful cooperation among men is primarily based on mutual trust and only secondarily on institutions such as courts of justice and police.
All that we are is the result of what we have thought. If people speak or act with evil thoughts, pain follows them. If people speak or act with pure thoughts, happiness follows them, like a shadow that never leaves them.
If a man is respectful he will not be treated with insolence. If he is tolerant he will win the multitude. If he is trustworthy in word his fellow men will entrust him with responsibility. If he is quick he will achieve results.