Who said "Doubt is the first step toward a nexus event."?

This quote is attributed to Time Variance Authority.

Doubt is the first step toward a nexus event. - Time Variance Authority

"Doubt is the first step toward a nexus event."

Time Variance Authority Fear

"Pruning timelines is not destruction; it is necessary maintenance of the sacred timeline."

"Your actions have consequences that ripple across all of reality."

"Free will is an illusion maintained for the comfort of the ignorant."

"We are bound by duty to protect what is predetermined."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."