Divergent thinking means thinking in different directions and from different angles, and looking for solutions from multiple aspects. Which of the following belongs to divergent thinking? ['Focus on a problem, point your mind at this center from different directions and different angles.', 'Newton realizes gravity from apple landing.', 'Luban was inspired by the broken hand and invented the saw.', 'Humans get inspiration from insect eye composition, developed many advanced night vision weapons.']