R’ Eliezer said in the name of R’ Yehoshua: Any tumah from a corpse for which a nazir shaves, one is liable because of it for entering the Temple; and any tumah from a corpse for which a nazir does not shave, one is not liable for it for entering the Temple. R’ Meir said: This should not be more lenient than [tumah contracted] from a creeping thing! R’ Akiva said: I reasoned before R’ Eliezer: If [for] a bone the size of a barley-grain, which does not contaminate a person by way of a roof, the nazir shaves for touching it or carrying it —- [for] a quarter-log of blood, which contaminates a person [even] by way of a roof, is it not clear that a nazir should shave for touching it or carrying it! He said to me: What is this, Akiva. We cannot reason here by kal vachomer. When I came and related these things to R’ Yehoshua, he said to me: You have spoken well, but so have they said as an Oral Law.