As President, I have no eyes but constitutional eyes; I cannot see you.

The line expresses a constitutionalist view of presidential power: Lincoln is saying that, in his official capacity, he can recognize only what the Constitution authorizes him to recognize. “No eyes but constitutional eyes” frames the presidency as an office constrained by law rather than personal sympathy, political pressure, or private judgment. The second clause—“I cannot see you”—implies that a person or group is asking for recognition or action that the Constitution does not permit (or that Lincoln believes it does not permit), so he must treat them as legally nonexistent for the purpose at hand. The quote is often invoked to illustrate Lincoln’s emphasis on legal limits and formal recognition in governance.