Light and funny has a more compelling quality when you're younger. But I haven't abandoned the genre: I love falling down; I love Lucille Ball. It's just that a lot of those stories revolve around problems that I can't convincingly portray at this age. Julia Roberts
Any thought that is passed on to the subconscious often enough and convincingly enough is finally accepted. Robert Collier
In my years of acting, the one thing I was never able to do convincingly was to laugh on camera. Fake-laugh. Paul Feig
Interestingly, the actress who, in her own persona, may be gentle, shy, and socially awkward, someone whose hand trembles when pouring a cup of tea for a visiting friend, can convincingly portray an elegant, cruel aristocrat tossing off malicious epigrams in an eighteenth-century chocolate house. Wallace Shawn
I'm not certain that the BBC can claim to be making a wide enough range of distinctive programmes to make the case convincingly. Jonathan Dimbleby