Another saying that is new to me

"An attack on the king develops more slowly than an attack on objects of lesser value, but is far more dangerous" This saying, referred to as 'classical', comes from "A Contemporary Approach to the Middlegame" by Aleksei Suetin. I guess it must be well known to have such an appellation, but it is certainly new to me.
The example game he gives is an old game (to compound my ignorance), played between Kotov and Panov in 1936. With White having the play on the queenside, Black looks to the Kingside for counterplay. At first glance it looks as though White will break through first, but to prove the point, Black ends up with the greater advantage.

Kotov - Panov [E62]
Moskou, 1936

1.d4 Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 0-0 5.g3 d6 6.Bg2 Nc6 7.d5 Nb8 8.0-0 e5 9.e4 Nbd7 10.Qc2 a5 11.a3 Nc5 12.Be3 Ng4 13.Bxc5 dxc5 14.h3 Nh6 15.Rab1 Re8 16.Nd2 f5 17.b4 Bf8 18.Na2 Nf7 19.Kh2 f4 20.Nb3 axb4 21.axb4 cxb4 (D) 
22.c5 Ng5 23.Rfd1 f3 24.h4 Nxe4 25.Bxf3 Rxa2 26.Qxa2 Nc3 27.Qd2 Qf6 28.Bg2 e4 29.Rbc1 Nxd1 30.Rxd1 Qc3 31.Qe3 Bf5 32.Kg1 Qxe3 33.fxe3 Bh6 34.Re1 Re5 35.Bf1 c6 36.dxc6 bxc6 37.Bc4+ Kf8 38.Kf2 Bg4 39.Kg1 Ke7 40.Kg2 Rf5 41.Be2 Bxe2 42.Rxe2 Rd5 43.Kf2 Rd3 44.Na5 Kd7 45.Nc4 Ke6 46.g4 Kd5 47.Nb2 Ra3 48.Rd2+ Kxc5 49.g5 Bg7 0-1