So, to summarize: my themes in this lecture have been: 1. Bioengineering is a many-splendoured thing. 2. There are few differences in principle between scientists and engineers, and they need to work together and respect one another's special contribution. 3. The Department of Health has done much to enhance your career structure and prospects recently; now you have to help us to polish your image even further. 4. There is urgent need for collaboration amongst all parties if we are to counter some potentially deleterious effects of the recent NHS reforms on the work of clinical scientists and engineers. Finally, I wanted to thank you for admitting me, just a little way, into the magical world of biological engineering. Life has become infinitely more exciting since you did so, and I owe you all a considerable debt of gratitude.