Why some people consider youth a time of freedom and joy, is perhaps because they've forgotten their own. [Cf. Margaret Atwood]
Good Zen doesn't confuse spirituality with thinking about God while peeling potatoes. [With Alan Watts]
In studying the Zen way, realising it can be hard. Once you have realised it, preserving it can be hard. When you can preserve it, cutting it into heritage-practice can be very, very hard. Go for that. [Cf. Zen Saying]
To lessen or eliminate steady effects of bad company may work for some time, but many unworthy ones spur their horses and let others repair the damages and hurts they cause by their narrow hard-heartedness and the like. Buddha says one should avoid the company of fools altogether. The Buddhist poem Dhammapada, particularly chapter 5, contain such advice too. But just sitting alone tends to lessen one's outlooks and chances of promotions and good luck.
The innocence that feels no risk and is taught no caution, can be more vulnerable than guilt, and more often assailed. [With Nathaniel P. Willis]