"I have often wished that I had more time to devote to my favourite studies."

"It is a fact well known to many, that persons who have had the Cow Pox, are for ever after secure from the infection of the Small Pox."

"The most important lesson that I have learned in life is, that we should always endeavour to do our duty."

"Don't think; try."

"I have often been accused of being too sanguine in my expectations; but time will show whether I am right or wrong."