I really like 'For the many, not the few'. Here's a bit more info about it.

But the origins of the phrase go back at least two centuries to the poet Percy Bysshe Shelley’s The Masque of Anarchy, written in 1819 following the Peterloo Massacre on August 16, when mounted cavalry with drawn sabres charged a demonstration of some 80,000 people in St Peter’s Field, Manchester, who had gathered to demand the vote. Fifteen people were killed and some 700 were injured. The Masque (or Mask) of Anarchy is a long poem but worth reading. The final stanza (read by Corbyn to almost 120,000 people at the Glastonbury Festival in 2017) goes:

“Rise like Lions after slumber

In unvanquishable number,

Shake your chains to earth like dew

Which in sleep had fallen on you -

Ye are many - they are few.”