Based on the excerpt provided from Christopher Columbus’s journal, the best summary of how Columbus’s and Vasco da Gama’s motivations were different is:
Both had three motivating factors; however, Columbus achieved spices, God, and glory, whereas da Gama achieved glory and silk.
This response highlights the difference in the primary aims of Columbus and da Gama regarding exploration and trade, with Columbus being motivated by the potential for establishing Christianity, seeking glory, and gaining access to spices, while da Gama focused on glory and the pursuit of silk.