For a man to attain to an eminent degree in learning costs him time, watching, hunger, nakedness, dizziness in the head, weakness in the stomach, and other inconveniences. Miguel de Cervantes
We should listen to the voice of conscience. It does not take nearly as much courage as one might think to admit to our mistakes and learn from them. Human beings are in this world to learn and to change themselves in learning. Traudl Junge
The whole secret of the study of nature lies in learning how to use one's eyes. George Sand
The only real progress lies in learning to be wrong all alone. Albert Camus
Everyone is weary: the poor in seeking, the rich in keeping, the good in learning. English Proverb
Be dilligent in learning. Indonesian Proverb