Workers at subway stations across London have reacted to Wednesday’s terror attack which left four people dead in very inspirational ways.

On Thursday morning, they inked messages of hope and defiance as their “Quote of the Day” on London Underground service information boards.

“The flower that blooms in adversity is the rarest and most beautiful of them all,” wrote staff at Tower Hill station, alongside the hashtags #LondonIsOpen and #WeAreNotAfraid:

This message was written at Clapham North in south-west London:

Love this sentiment at @Claphamnth tube station this morning. pic.twitter.com/PaEU5MQHOM — Amit Bali (@amitkbali) March 23, 2017

Workers at Tooting Bec station in south London had this to say:

Oval station in south London echoed those sentiments:

As did Richmond station in southwest London:

The various messages struck a chord with fellow Twitter users, who dubbed them “beautiful,” “powerful” and “thoughtfully placed.”

@towerhilltube @ThePoke Beautiful. We are all with you, Tube staff, Police, MPs, Public, Visitors, Londoners — Katie Clarke (@kcatclarke) March 23, 2017

Great quote seen at Tower Hill Tube station. This is why we love London & Londoners ! https://t.co/Xg45orSNAM — Emmanuel B. (@EmmBLD) March 23, 2017

@towerhilltube We're all grateful for what you do keeping London moving. Thank you for *that* quote - inspired. — Revd Hannah Reynolds (@StPetersDidcot) March 23, 2017

@towerhilltube Keeping on writing will prove to anyone threatening you that they can't win. Sending you tenderness & strenght from Belgium :* — Nat Lecoq (@Nat_Lecoq) March 23, 2017

CORRECTION: An earlier version of this article stated that the London attack had left five people dead.