Celery Chopped Salad with Dates, Feta and Nuts

0 Separate the leaves from the stalks of the celery. Slice the stalks thinly on a bias and roughly chop the leaves.
1 If your celery is a little wilted, place it in a bowl of ice water to heighten the crispiness, then drain on a tea towel before continuing.
2 To toast the nuts, warm them in a medium skillet over medium heat, stirring often, until fragrant and toasted, about 2-4 minutes.  
6 Note: If you are making this salad ahead, store the nuts separately and mix in just before serving to maintain their crunch.
3 Place sliced celery stalks and leaves in a medium sized bowl.
4 Add the sliced shallot, chopped nuts, dates, feta cheese, lemon juice, white wine vinegar, olive oil, and red pepper flakes. Season generously with salt and pepper, and toss to combine.
5 Serve.