Literature Reference: 霄汉几多同学伴，可怜头角尽卿材。——《书怀寄中朝往还》 How many classmates roam the heavens, pitifully, all their talents and potential are wasted. Source from 'Shu Huai Ji Zhong Chao Wang Huan'.
头:
Beginning, starting point, or end point.
角: Surname, forehead bone, measure word.
Meaning: Symbolizes outstanding talent and the emergence of potential.