To be a winner you must want to win but must know of the chance of losing and must not fear of it.

Every action needs to be prompted by a motive.

Being engulfed in practice without delicate knowledge related to it, is in many ways like entering a ship without knowing where it is headed.

Being willing is not enough. We must do.

Here is a thing which the more it is needed the more it is rejected: and this is advice, which is unwillingly heeded by those who most need it, that is to say, by the ignorant.

He who truly knows has no occasion to shout.

We know more about the movement of celestial bodies than about the soil underfoot.