"The pessimist complains about the wind; the optimist ..."

"The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails." - William Arthur Ward

"Ups and downs in life are very important to keep us going, because ..."

"Ups and downs in life are very important to keep us going, because a straight line even in an ECG means we are not alive." - Ratan Tata

"It's amazing what you can see..."

"It's amazing what you can see, when you just sit quietly and look." - Jacqueline Kelly