Zeal without humanity is like a ship without a rudder, liable to be stranded at any moment.
In any case, the fewer boundaries that exist hindering free movement between all forms of articulate human cognition, the better.
I have somewhere met with the epitaph on a charitable man which has pleased me very much. I cannot recollect the words, but here is the sense of it: 'What I spent I lost; what I possessed is left to others; what I gave away remains with me.'