Don't get me started... I have so many favourites.
This first one is a parabel and second one a regular quote from HH The Dalai Lama.

"..when you are looking into the ocean trying to locate a fish, you will not be able to find one while the ocean is still and the fish are under the water. But when a wave comes, you will occasionally be able to glimpse the fish."

"I have found that the greatest degree of inner tranquility comes from the development of love and compassion. The more we care for the happiness of others, the greater is our own sense of well-being. Cultivating a close, warm-hearted feeling for others automatically puts the mind at ease. It is the ultimate source of success in life."