Every New Body Of Discovery Is Mathematical

Owing To This Struggle For Life, Any Variation, However Slight And From Whatever Cause Proceeding, If It Be In Any Degree Profitable To An Individual Of Any Species, In Its Infinitely Complex Relationship To Other Organic Beings And To External Nature, Will Tend To The Preservation Of That Individual, And Will Generally Be Inherited By Its Offspring.

The Main Conclusion Here Arrived At ... Is That Man Is Descended From Some Less Highly Organized Form.

It Is Scarcely Possible To Doubt That The Love Of Man Has Become Instinctive In The Dog.

An American Monkey, After Getting Drunk On Brandy, Would Never Touch It Again, And Thus Is Much Wiser Than Most Men.

I Shall Always Feel Respect For Every One Who Has Written A Book, Let It Be What It May, For I Had No Idea Of The Trouble Which Trying To Write Common English Could Cost One—and Alas There Yet Remains The Worst Part Of All Correcting The Press.