can someone please tell me what this means "It's smart to grab what you can from the teachers and lessons around you. Life is rough--you need all the knowledge you can get to succeed"

Dogs have been considered man’s best friend for decades! most likely because of their kind and loyal nature. they make splendid companions. their loyalty is beyond compare and after all, a dog is the only thing on earth that loves you more than he loves himself! dogs see us as their friends and leaders, they’ll do anything in their power to ensure your comfort and safety.