" It's always exciting to go deeper [into these characters] because it's something new, but all of us here still manage to keep it funny ... My character is 180 degrees different than he was just two seasons ago, but it's all baby steps. It took five seasons for Sheldon to hold Amy's hand and for Howard to get married, so it doesn't come from the urge to be flashy. It's really earned. "
" I don't remember the last time Jim [Parsons, who plays Sheldon] or I had one of those long, brain-wrenching, scientific-jargon speeches ... It's not about that anymore; it's about how they relate to one another, as opposed to how they relate to science. "