No party should be able to forget this, least of all one that calls itself Conservative.
Times, Sunday Times (2011)
All related terms of 'all one'
all-in-one
denoting a single object or system that consists of or functions as several different items
one and all
One and all means everyone present or everyone in a particular group.
one size fits all
relating to policies or approaches that are standard and not tailored to individual needs
carry all before one
to win unanimous support or approval for oneself
in one
You can use in one to indicate that something is a single unit, but is made up of several different parts or has several different functions.
for all one is worth
to the utmost ; to the full extent of one's powers or ability
with all one's heart
If you feel or believe something with all your heart , you feel or believe it very strongly.
with all one's might
If you do something with all your might , you do it using all your strength and energy .
give one's all/put one's all
If you give your all or put your all into something, you make the maximum effort possible .
in all one's born days
so far in one's life
of one's own/all of one's own
If someone or something has a particular quality or characteristic of their own , that quality or characteristic is especially theirs, rather than being shared by other things or people of that type.
put all one's eggs in one basket
to stake everything on a single venture
put all your eggs in one basket
to put all your efforts or resources into one course of action with the result that you will have no alternatives left if this fails
to put all your eggs in one basket
If someone puts all their eggs in one basket , they put all their effort or resources into doing one thing so that, if it fails , they have no alternatives left.
to have egg on your face have egg all over one's face
If someone has egg on their face or has egg all over their face , they have been made to look foolish .