Unity3D - Vector3 to Quaternion

static	vector3	quaternion
vector3.zero	(0, 0, 0)	(0.0, 0.0, 0.0, 1.0)
vector3.back	(0, 0, -1)	(0.0, 0.0, -0.5, 0.9)
vector3.down	(0, -1, 0)	(0.0, -0.5, 0.0, 0.9)
vector3.forward	(0, 0, 1)	(0.0, 0.0, 0.5, 0.9)
vector3.left	(-1, 0, 0)	(-0.5, 0.0, 0.0, 0.9)
vector3.one	(1, 1, 1)	(0.6, 0.2, 0.2, 0.8)
vector3.right	(1, 0, 0)	(0.5, 0.0, 0.0, 0.9)
vector3.up	(0, 1, 0)	(0.0, 0.5, 0.0, 0.9)