Can I prevent a "before insert, before update" Apex Trigger from firing if a checkbox = true?

trigger triggerCase on Case (after delete, after insert, after undelete, after update, before delete, before insert, before update) {
    if(Trigger.isBefore){
		if(Trigger.new[0].checkbox__c){
		// Do do any tiink	
			// You can move all before logic in the apex class and call the class from the trigger
		}else{
			call logic here 
		}
	}
}