As trained scientists (or scientists-in-training), we've all had teachers of various sorts (at the undergraduate or graduate level), as well as research preceptors, academic advisors, and others who have guided us along the path to where we are now. There is no question that all of the people involved directly or indirectly with our education/training played an important role in the progress and eventual outcome of that training, and by extension our ultimate successes. While all of these people were important in their own right, only a few of these people carry the special designation of mentor. Mentors are exceptionally important in the initial training and continued development of a scientist. Mentorship is important for all of us, whether we are in academic science, biotechnology or industrial science, government research or policy, or some other science-related career (or on a pathway to such a career). Mentorship should be pursued intentionally and with a knowledge of its relative value. This blog post is intended to encourage everyone to ponder mentorship, how we receive it from others and how we provide it to others, its significant role in our professional development, and our responsibility to be effective mentors when the opportunity presents itself.