"Smoking kills. If you're killed, you've lost a very important part of your life."

"What a wee little part of a person's life are his acts and his words! His real life is led in his head, and is known to none but himself."

"Do not put off until tomorrow what can be put off till day-after-tomorrow just as well."

"I have found that there ain't no surer way to find out whether you like people or hate them than to travel with them."

"Outside of a dog, a book is man's best friend. Inside of a dog it's too dark to read."