gif doctor who matt smith the doctor David Tennant special the day of the doctor
This is so powerful because he's seen it all first hand. The Doctor knows there's truth in his words
This episode and especially river just broke my heart!
Clara and Twelve in "Hell Bent"
From The 14rh Doctor's memories and the Tardis' databanks
I think tennant and smith were just two doctors who went full fanboy in this moment