"Be the first to the field and the last to the couch."

"When you drink the water, remember the spring."

"The gem cannot be polished without friction, nor man perfected without trials."

"Dig the well before you are thirsty."

"Deep doubts, deep wisdom; small doubts, little wisdom."

"Be not afraid of going slowly; be only afraid of standing still."

"Examine what is said, not him who speaks."

"Trumpet in a herd of elephants; crow in the company of cocks; bleat in a flock of goats."

"Raise your sail one foot and you get ten feet of wind."

"He who asks is a fool for five minutes, but he who does not ask remains a fool forever."

"What you don't see with your eyes, don't invent with your mouth."

"The big thieves hang the little ones."