Quote by August Weismann

"The struggle for existence holds as much in the future as it has held in the past."

"Natural selection is the only true guiding force in the development of organic life."

"Acquired characteristics cannot be inherited; only those traits present in the germ cells pass to offspring."

"Evolution is not a theory of chance, but of necessity."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."