In "Trains and Lovers," author Alexander McCall Smith explores the theme of love and its complexities. The protagonist reflects on the idea that it can often be better to conceal one's feelings rather than share them openly. This stems from the understanding that love can manifest in various forms, each with its own implications and risks.

The quote emphasizes the notion that not all expressions of love are straightforward or safe. By keeping his feelings to himself, the character acknowledges the diverse experiences of love and the potential challenges that come with revealing one's emotions. Ultimately, the story delves into the various dimensions of love and the ways individuals navigate their affections.