The gem cannot be polished without friction nor man without trials.

Men's natures are alike; it is their habits that separate them.

It is better to play than do nothing.

There are cases in which the blade springs, but the plant does not go on to flower. There are cases where it flowers, but no fruit is subsequently produced.

The rich fool is like a pig that is choked by its own fat.

To acknowledge our faults when we are blamed, is modesty; to discover them to one's friends in ingenuousness, is confidence; but to preach them to all the world, if one does not take care, is pride.

When three persons work together, each can be the teacher in some aspects