Arousing one’s energy

"Though one should live a hundred years

As a lazy, sluggish person,

Better it is to live a single day

Firmly arousing one’s energy."

--

(Dhammapada 112)

....

https://www.dhammatalks.org/suttas/KN/Thag/thag3_5.html

Thag 3:5  Mātaṅgaputta

It’s too cold,

too hot,

too late in the evening—

people who say this,
shirking their work:

The moment passes them by.

Whoever regards cold & heat
as no more than grass,
doing his manly duties,

won’t fall away

from ease.

With my chest
I push through wild grasses—

spear-grass,

ribbon-grass,

rushes—

cultivating a heart

bent on seclusion.

See also: AN 8:95