From Tamburlaine the Great, Part One ("Nature that framed us of four elements")

Nature that framed us of four elements,Warring within our breast for regiment,Doth teach us all to have aspiring minds:Our souls, whose faculties can comprehendThe wondrous architecture of the worldAnd measure every wandering planet's course,Still climbing after knowledge infiniteAnd always moving as the restless spheres,Wills us to wear ourselves and never restUntil we reach the ripest fruit of all,That perfect bliss and sole felicity,The sweet fruition of an earthly crown.