"recks not his own rede"

from the Free Dictionary definition of Advice:
http://www.thefreedictionary.com/advice

reck one’s own rede

To follow one’s own advice; to “practice what you preach.” Reck ‘heed, regard’ appears only in negative constructions. Rede ‘advice, counsel’ is now archaic and limited to poetical or dialectal use. This expression is found in Shakespeare’s Hamlet.
Do not, as some ungracious pastors do,
Show me the steep and thorny way to heaven,
Whilst, like a puffed and reckless libertine,
Himself the primrose path of dalliance treads,
And recks not his own rede. (I,iii)

Today reck one’s own rede is met only in literary contexts.

the tune the old cow died of

Advice instead of aid, words in lieu of alms.
This expression alludes to the following old ballad:

There was an old man, and he had an old cow,
But he had no fodder to give her,
So he took up his fiddle and played her the tune;
“Consider, good cow, consider,
This isn’t the time for the grass to grow,
Consider, good cow, consider.”

Needless to say, the old cow died of hunger.