It is heavenly when you are clean,

and then you go dirty.

The scientist does not study nature because it is useful;

he studies it because he delights in it,
and he delights in it because it is beautiful.
If nature were not beautiful,
it would not be worth knowing,
and if nature were not worth knowing,
life would not be worth living.

(Jules Henri Poincare)

Thought is before action

slow is before fast
delicate is before strong
less is before more