(Excerpt from Chapter 5—Unboxing Personality in 𝑫𝒐𝒏'𝒕 𝑪𝒉𝒂𝒏𝒈𝒆 𝑻𝒉𝒆𝒎; 𝑮𝒓𝒐𝒘 𝑻𝒉𝒆𝒎)

People are like the pieces of peculiar art on Via Padova in Milan, Italy. Most passers-by see only the five yellow metal structures on the sidewalk: two circles, two triangles, and an arrow. However, those who look...