When two or three sciences are pursued at the same time if one of them be dry, as logic, let another be more entertaining, to secure the mind from weariness.
No science is speedily learned by the noblest genius without tuition.
Nothing tends so much to enlarge the mind as traveling.
Thoughts, like old vultures, prey upon their heart-strings
Learn good-humor, never to oppose without just reason; abate some degree of pride and moroseness.
Every one of his opinions appears to himself to be written with sunbeams.