Necessity is the mother of invention. The need for something forces people to find a way of obtaining it
Need teaches a plan. Necessity will make you find a solution
No news is good news. If the news was bad, we would hear of it. Since we have heard nothing, we can assume that all is well
No smoke without fire “or” No wind, no waves. There could be some truth in the rumor
Nothing ventured, nothing gained. You cannot expect to achieve anything if you don’t take risks