Over the course of the next several months, Hubel and Wiesel made humanity's first crucial steps forward in understanding the brain's visual processing systems. (aaas.org)
Listening to customers — an intimate form of market research — is the first crucial step in developing a product or concept that will sell. (canadianbusiness.com)
No one, I believe, could be more aware than I of the difficulties which this first crucial step involves for the modern man. (religion-online.org)