The quote from Sinclair Lewis's "Dodsworth" suggests a critical view of travel as a means of gaining wisdom and insight. Lewis argues that if travel were truly the enlightening experience many claim it to be, then the most knowledgeable and intelligent individuals would be those who travel frequently for work, such as sailors or railway porters. This implies that mere exposure to different places and cultures does not inherently make someone wiser or more understanding.

Moreover, Lewis challenges the romanticized notion that travel equates to personal growth or enlightenment. The statement highlights that wisdom may originate from deeper experiences, reflection, and knowledge, rather than simply from the act of traveling. Ultimately, the quote serves as a reminder to consider the value of experience and insight beyond the surface-level thrill of tourism.