These thoughts are primarily intended for students and early-career scientists who have chosen to make hydrology their disciplinary home. I find myself enviously thinking that never before has there been such a good time to be a student of water in its myriad, captivating forms. Hydrology sits at a fortuitous confluence of insight, interest, and tools, and, above all else, critical questions that must be answered if the global community is to survive and prosper in the years ahead.
