Louis Pasteur, the great scientist, said "chance favours the prepared mind", which is a posh way of saying 'do your homework', but it's an excellent piece of advice.
As a rule, the mind, residing in a body that has become weakened by pampering, is also weak, and where there is no strength of mind there can be no strength of soul.
The mind becomes accustomed to things by the habitual sight of them, and neither wonders nor inquires about the reasons for things it sees all the time.
Wit and puns aren't just décor in the mind; they're essential signs that the mind knows it's on, recognizes its own software, can spot the bugs in its own program.
Look at your own mind. The one who carries things thinks he's got things, but the one who looks on sees only the heaviness. Throw away things, lose them, and find lightness.