Biju Vasudevan said this quote

But the Seeker, who is of unsure gait, also has unsure traits. The way that he moves is unstable and ungainly. It is also unnatural. No other life form adopted this precarious locomotion method of walking on two legs. Intrinsically off balance at all times, it takes just a small stone or a banana peel to topple him over. It is a mysterious wobbly motion much like that of a bicycle. How easy it is, to throw a cyclist off balance, need not be elaborated. But try throwing a truck off balance? Unsettling the Seeker’s balance is also equally easy. But try throwing a horse or a tiger off balance? Even a child knows that four wheels or, at least, three wheels are more stable than two wheels.

~ Biju Vasudevan