Leonardo da Vinci: A bird makes the same use of wings and tail in the air as a swimmer does of his arms and legs in the water.

A bird makes the same use of wings and tail in the air as a swimmer does of his  — Leonardo da Vinci

A bird makes the same use of wings and tail in the air as a swimmer does of his arms and legs in the water.

Source: Wikiquote (CC BY-SA 3.0). Quotations may be subject to their authors' rights and may be shown in translation.