"The best laid plans of mice and men oft go awry
and leave us not but grief and pain for promised joy."
- Robert Burns
Or, in the original Scot, (read as you would Mike Meyer's character in "So I Married an Axe Murderer")
"The best laid schemes o' Mice an' Men,
Gang aft agley,
An' lea'e us nought but grief an' pain,
For promis'd joy!"