You possess an impressive flexibility with casting that other wizards lack.
Benefit: When you use Flexible Wizardry, you can flexibly prepare a number of spell slots equal to your Intelligence modifier + 4. Furthermore, you can finalize one of these slots with a standard action instead of a full-round action.
Pathfinder Roleplaying Game: Advanced Class Guide © 2014, Paizo Inc.; Authors: Dennis Baker, Ross Byers, Jesse Benner, Savannah Broadway, Jason Bulmahn, Jim Groves, Tim Hitchcock, Tracy Hurley, Jonathan H. Keith, Will McCardell, Dale C. McCoy, Jr., Tom Phillips, Stephen Radney-MacFarland, Thomas M. Reid, Sean K Reynolds, Tork Shaw, Owen K.C. Stephens, and Russ Taylor.