"You don't need someone to complete you..."

"You don't need someone to complete you. You only need someone to accept you completely."

"Don’t walk behind me; I may not lead..."

"Don’t walk behind me; I may not lead. Don’t walk in front of me; I may not follow. Just walk beside me and be my friend." - Albert Camus

"You cannot shake hands with..."

"You cannot shake hands with a clenched fist." - Indira Ghandi

"A ship in harbor is safe, but that is ..."

"A ship in harbor is safe, but that is not what ships are built for." - J.A. Shedd

Meaning: In other words, don't be afraid to be adventurous.

"If you can find a path with no obstacles..."

"If you can find a path with no obstacles, it probably doesn't lead anywhere." - Frank A. Clark

"We are much more vulnerable today to a catastrophic influenza pandemic than..."

"We are much more vulnerable today to a catastrophic influenza pandemic than we were in 1918. That may seem counterintuitive, but today there are about 7.6 billion people on Earth, more than 3 times the population in 1918." - Michael Osterholm

"What day is it?” asked Pooh...

"What day is it?" asked Pooh.
"It’s today." squeaked Piglet.
"My favorite day." said Pooh." - A.A. Milne