(At the request of JustUWait221)
One of the most important authors of the Victorian era. You may know him from A Christmas Carol, David Copperfield or Great Expectations. (I own all his books and my favourite is A Tale of Two Cities.)

"There is nothing in the world so irresistibly contagious as laughter and good humour."

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"I loved her against reason, against promise, against peace, against hope, against happiness, against all discouragement that could be." 

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"What greater gift than the love of a cat." 

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"Never close your lips to those whom you have already opened your heart."

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"Suffering has been stronger than all other teaching, and has taught me to understand what your heart used to be. I have been bent and broken, but - I hope - into a better shape."

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"There are books of which the backs and covers are by far the best parts." 

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"Have a heart that never hardens, and a temper that never tires, and a touch that never hurts."

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"A wonderful fact to reflect upon, that every human creature is constituted to be that profound secret and mystery to every other." 

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"The pain of parting is nothing to the joy of meeting again." 

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"We need never be ashamed of our tears."