The best laid schemes o' mice an' men gang aft agley.

The best laid schemes o' Mice an' Men,
Gang aft agley.
An' lea'e us nought but grief an' pain,
For promis'd joy!

(To A Mouse)

Life is what happens to us while we are making other plans.

While Europe's eye is fix'd on mighty things, The fate of empires and the fall of kings; While quacks of State must each produce his plan, And even children lisp the Rights of Man; Amid this mighty fuss just let me mention, The Rights of Woman merit

It is easy to make plans in this world; even a cat can do it; and when one is out in those remote oceans it is noticeable that a cat's plans and a man's are worth about the same.

Sometimes the things that do not quite happen in your life count for more than the things that do.