The Land That Time Forgot by Edgar Rice Burroughs

"...you happen to be less powerful or more powerful than some other form of life which crosses your path; but as a rule you are of no moment whatsoever to anything but yourself."

Burrough's classic is the tale of a crew of first world war sailors, discovering an island inhabited by dinosaurs and prehistoric men.

"You are here for but an instant, and you mustn't take yourself too seriously."