The greatest cruelty is our casual blindness to the despair of others.
The most important property of a program is whether it accomplishes the intention of its user.
You have to believe in yourself when no one else does.
The idea of a margin of safety, a Graham precept, will never be obsolete. The idea of making the market your servant will never be obsolete. The idea of being objective and dispassionate will never be obsolete.
Certification schemes are the floor, not the ceiling of responsible forestry practice.