This not true at all. The Renaissance stemmed from people being released from the confines of a Feudal/Monarchical system of control. In 13th century Italy, where it had it's beginnings(and spread over centuries from there) people were experiencing Political and Social freedoms. This intellectual awakening flowed into more than just the Political and Social realms. When people are free you will see them reach far beyond their grasp and accomplish amazing things.
The opposite it also true, as we can see around the world today where we are all being put back under the slavemasters boot. Who can argue against the fact we are all being dumbed down worldwide by Government controlled Education. Toss a little Flouride and Mercury laced Vaccines into the mix and you've got a nice little Labotomy for the General Population.
Please have more children! We need more division of labor! The ability to specialize brings technological progress in all fields, whether science, engineering, medicine, etc. The ability to pursue a career in a field that you enjoy is only made possible by the fact that all other necessities have been taken care of for you. The Renaissance was only possible once people had free time to think.