Air and light and time and space by Charles Bukowski. He was referring to the creative process of writing, but it applies to the creative process of doing science in the same way. It refers to science as an attitude, not as a nine to five job.
Ingo Helbig
Child Neurology Fellow and epilepsy genetics researcher at the Children’s Hospital of Philadelphia (CHOP), USA and Department of Neuropediatrics, Kiel, Germany